Home / 1,507.28-2,079.68-844.16

Finding the Fourth Proportional to 1,507.28, 2,079.68 and 844.16

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Solution

The fourth proportional to 1,507.28, 2,079.68 and 844.16 is: 1,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507.28 : 2,079.68 = 844.16 : x
  2. Step 2: Convert to fraction form
    1,507.28/2,079.68 = 844.16/x
  3. Step 3: Cross multiply
    1,507.28x = 2,079.68 × 844.16
  4. Step 4: Simplify right side
    1,507.28x = 1,755,582.67
  5. Step 5: Solve for x
    x = 1,755,582.67/1,507.28
  6. Step 6: Final answer
    x = 1,164.74

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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.