Home / 5,430.34-8,144.55-1,534.66

Finding the Fourth Proportional to 5,430.34, 8,144.55 and 1,534.66

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Solution

The fourth proportional to 5,430.34, 8,144.55 and 1,534.66 is: 2,301.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.34 : 8,144.55 = 1,534.66 : x
  2. Step 2: Convert to fraction form
    5,430.34/8,144.55 = 1,534.66/x
  3. Step 3: Cross multiply
    5,430.34x = 8,144.55 × 1,534.66
  4. Step 4: Simplify right side
    5,430.34x = 12,499,115.10
  5. Step 5: Solve for x
    x = 12,499,115.10/5,430.34
  6. Step 6: Final answer
    x = 2,301.72

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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.