Home / 1,956.19-2,699.53-1,116.92

Finding the Fourth Proportional to 1,956.19, 2,699.53 and 1,116.92

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Solution

The fourth proportional to 1,956.19, 2,699.53 and 1,116.92 is: 1,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.19 : 2,699.53 = 1,116.92 : x
  2. Step 2: Convert to fraction form
    1,956.19/2,699.53 = 1,116.92/x
  3. Step 3: Cross multiply
    1,956.19x = 2,699.53 × 1,116.92
  4. Step 4: Simplify right side
    1,956.19x = 3,015,159.05
  5. Step 5: Solve for x
    x = 3,015,159.05/1,956.19
  6. Step 6: Final answer
    x = 1,541.34

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Half scale
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Double scale
Find fourth proportional to 1,957.19, 2,700.91 and 1,117.92
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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.