Home / 5,077.72-7,617.20-1,790.14

Finding the Fourth Proportional to 5,077.72, 7,617.20 and 1,790.14

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Solution

The fourth proportional to 5,077.72, 7,617.20 and 1,790.14 is: 2,685.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.72 : 7,617.20 = 1,790.14 : x
  2. Step 2: Convert to fraction form
    5,077.72/7,617.20 = 1,790.14/x
  3. Step 3: Cross multiply
    5,077.72x = 7,617.20 × 1,790.14
  4. Step 4: Simplify right side
    5,077.72x = 13,635,854.41
  5. Step 5: Solve for x
    x = 13,635,854.41/5,077.72
  6. Step 6: Final answer
    x = 2,685.43

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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.