Home / 5,402.03-8,089.48-3,421.65

Finding the Fourth Proportional to 5,402.03, 8,089.48 and 3,421.65

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Solution

The fourth proportional to 5,402.03, 8,089.48 and 3,421.65 is: 5,123.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.03 : 8,089.48 = 3,421.65 : x
  2. Step 2: Convert to fraction form
    5,402.03/8,089.48 = 3,421.65/x
  3. Step 3: Cross multiply
    5,402.03x = 8,089.48 × 3,421.65
  4. Step 4: Simplify right side
    5,402.03x = 27,679,339.10
  5. Step 5: Solve for x
    x = 27,679,339.10/5,402.03
  6. Step 6: Final answer
    x = 5,123.88

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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.