Home / 5,011.72-7,517.61-1,313.91

Finding the Fourth Proportional to 5,011.72, 7,517.61 and 1,313.91

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Solution

The fourth proportional to 5,011.72, 7,517.61 and 1,313.91 is: 1,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.72 : 7,517.61 = 1,313.91 : x
  2. Step 2: Convert to fraction form
    5,011.72/7,517.61 = 1,313.91/x
  3. Step 3: Cross multiply
    5,011.72x = 7,517.61 × 1,313.91
  4. Step 4: Simplify right side
    5,011.72x = 9,877,496.96
  5. Step 5: Solve for x
    x = 9,877,496.96/5,011.72
  6. Step 6: Final answer
    x = 1,970.88

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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.