Home / 3,787.68-5,681.52-1,707.12

Finding the Fourth Proportional to 3,787.68, 5,681.52 and 1,707.12

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Solution

The fourth proportional to 3,787.68, 5,681.52 and 1,707.12 is: 2,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.68 : 5,681.52 = 1,707.12 : x
  2. Step 2: Convert to fraction form
    3,787.68/5,681.52 = 1,707.12/x
  3. Step 3: Cross multiply
    3,787.68x = 5,681.52 × 1,707.12
  4. Step 4: Simplify right side
    3,787.68x = 9,699,036.42
  5. Step 5: Solve for x
    x = 9,699,036.42/3,787.68
  6. Step 6: Final answer
    x = 2,560.68

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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.