Home / 5,111.28-7,666.92-1,648.53

Finding the Fourth Proportional to 5,111.28, 7,666.92 and 1,648.53

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Solution

The fourth proportional to 5,111.28, 7,666.92 and 1,648.53 is: 2,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.28 : 7,666.92 = 1,648.53 : x
  2. Step 2: Convert to fraction form
    5,111.28/7,666.92 = 1,648.53/x
  3. Step 3: Cross multiply
    5,111.28x = 7,666.92 × 1,648.53
  4. Step 4: Simplify right side
    5,111.28x = 12,639,147.63
  5. Step 5: Solve for x
    x = 12,639,147.63/5,111.28
  6. Step 6: Final answer
    x = 2,472.80

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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.