Home / 5,354.72-8,031.11-1,458.21

Finding the Fourth Proportional to 5,354.72, 8,031.11 and 1,458.21

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Solution

The fourth proportional to 5,354.72, 8,031.11 and 1,458.21 is: 2,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354.72 : 8,031.11 = 1,458.21 : x
  2. Step 2: Convert to fraction form
    5,354.72/8,031.11 = 1,458.21/x
  3. Step 3: Cross multiply
    5,354.72x = 8,031.11 × 1,458.21
  4. Step 4: Simplify right side
    5,354.72x = 11,711,037.62
  5. Step 5: Solve for x
    x = 11,711,037.62/5,354.72
  6. Step 6: Final answer
    x = 2,187.05

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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.