Home / 3,520.07-4,857.72-1,948.19

Finding the Fourth Proportional to 3,520.07, 4,857.72 and 1,948.19

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Solution

The fourth proportional to 3,520.07, 4,857.72 and 1,948.19 is: 2,688.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.07 : 4,857.72 = 1,948.19 : x
  2. Step 2: Convert to fraction form
    3,520.07/4,857.72 = 1,948.19/x
  3. Step 3: Cross multiply
    3,520.07x = 4,857.72 × 1,948.19
  4. Step 4: Simplify right side
    3,520.07x = 9,463,761.53
  5. Step 5: Solve for x
    x = 9,463,761.53/3,520.07
  6. Step 6: Final answer
    x = 2,688.52

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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.