Home / 6,421.80-9,627.66-2,529.12

Finding the Fourth Proportional to 6,421.80, 9,627.66 and 2,529.12

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Solution

The fourth proportional to 6,421.80, 9,627.66 and 2,529.12 is: 3,791.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.80 : 9,627.66 = 2,529.12 : x
  2. Step 2: Convert to fraction form
    6,421.80/9,627.66 = 2,529.12/x
  3. Step 3: Cross multiply
    6,421.80x = 9,627.66 × 2,529.12
  4. Step 4: Simplify right side
    6,421.80x = 24,349,507.46
  5. Step 5: Solve for x
    x = 24,349,507.46/6,421.80
  6. Step 6: Final answer
    x = 3,791.70

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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.