Home / 3,731.76-5,148.18-2,315.07

Finding the Fourth Proportional to 3,731.76, 5,148.18 and 2,315.07

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Solution

The fourth proportional to 3,731.76, 5,148.18 and 2,315.07 is: 3,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.76 : 5,148.18 = 2,315.07 : x
  2. Step 2: Convert to fraction form
    3,731.76/5,148.18 = 2,315.07/x
  3. Step 3: Cross multiply
    3,731.76x = 5,148.18 × 2,315.07
  4. Step 4: Simplify right side
    3,731.76x = 11,918,397.07
  5. Step 5: Solve for x
    x = 11,918,397.07/3,731.76
  6. Step 6: Final answer
    x = 3,193.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.