Home / 1,560.66-2,153.62-971.19

Finding the Fourth Proportional to 1,560.66, 2,153.62 and 971.19

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Solution

The fourth proportional to 1,560.66, 2,153.62 and 971.19 is: 1,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.66 : 2,153.62 = 971.19 : x
  2. Step 2: Convert to fraction form
    1,560.66/2,153.62 = 971.19/x
  3. Step 3: Cross multiply
    1,560.66x = 2,153.62 × 971.19
  4. Step 4: Simplify right side
    1,560.66x = 2,091,574.21
  5. Step 5: Solve for x
    x = 2,091,574.21/1,560.66
  6. Step 6: Final answer
    x = 1,340.19

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.