Home / 4,507.86-6,762.78-1,387.92

Finding the Fourth Proportional to 4,507.86, 6,762.78 and 1,387.92

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Solution

The fourth proportional to 4,507.86, 6,762.78 and 1,387.92 is: 2,082.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,507.86 : 6,762.78 = 1,387.92 : x
  2. Step 2: Convert to fraction form
    4,507.86/6,762.78 = 1,387.92/x
  3. Step 3: Cross multiply
    4,507.86x = 6,762.78 × 1,387.92
  4. Step 4: Simplify right side
    4,507.86x = 9,386,197.62
  5. Step 5: Solve for x
    x = 9,386,197.62/4,507.86
  6. Step 6: Final answer
    x = 2,082.18

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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.