Home / 7,354.31-11,031.19-1,807.67

Finding the Fourth Proportional to 7,354.31, 11,031.19 and 1,807.67

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Solution

The fourth proportional to 7,354.31, 11,031.19 and 1,807.67 is: 2,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,354.31 : 11,031.19 = 1,807.67 : x
  2. Step 2: Convert to fraction form
    7,354.31/11,031.19 = 1,807.67/x
  3. Step 3: Cross multiply
    7,354.31x = 11,031.19 × 1,807.67
  4. Step 4: Simplify right side
    7,354.31x = 19,940,691.55
  5. Step 5: Solve for x
    x = 19,940,691.55/7,354.31
  6. Step 6: Final answer
    x = 2,711.43

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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.