Home / 2,519.28-3,781.32-1,547.28

Finding the Fourth Proportional to 2,519.28, 3,781.32 and 1,547.28

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Solution

The fourth proportional to 2,519.28, 3,781.32 and 1,547.28 is: 2,322.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.28 : 3,781.32 = 1,547.28 : x
  2. Step 2: Convert to fraction form
    2,519.28/3,781.32 = 1,547.28/x
  3. Step 3: Cross multiply
    2,519.28x = 3,781.32 × 1,547.28
  4. Step 4: Simplify right side
    2,519.28x = 5,850,760.81
  5. Step 5: Solve for x
    x = 5,850,760.81/2,519.28
  6. Step 6: Final answer
    x = 2,322.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.