Home / 2,787.56-4,178.68-1,032.16

Finding the Fourth Proportional to 2,787.56, 4,178.68 and 1,032.16

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Solution

The fourth proportional to 2,787.56, 4,178.68 and 1,032.16 is: 1,547.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.56 : 4,178.68 = 1,032.16 : x
  2. Step 2: Convert to fraction form
    2,787.56/4,178.68 = 1,032.16/x
  3. Step 3: Cross multiply
    2,787.56x = 4,178.68 × 1,032.16
  4. Step 4: Simplify right side
    2,787.56x = 4,313,066.35
  5. Step 5: Solve for x
    x = 4,313,066.35/2,787.56
  6. Step 6: Final answer
    x = 1,547.26

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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.