Home / 5,135.38-7,703.68-1,672.62

Finding the Fourth Proportional to 5,135.38, 7,703.68 and 1,672.62

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Solution

The fourth proportional to 5,135.38, 7,703.68 and 1,672.62 is: 2,509.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.38 : 7,703.68 = 1,672.62 : x
  2. Step 2: Convert to fraction form
    5,135.38/7,703.68 = 1,672.62/x
  3. Step 3: Cross multiply
    5,135.38x = 7,703.68 × 1,672.62
  4. Step 4: Simplify right side
    5,135.38x = 12,885,329.24
  5. Step 5: Solve for x
    x = 12,885,329.24/5,135.38
  6. Step 6: Final answer
    x = 2,509.13

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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.