Home / 4,225.12-6,337.68-1,147.12

Finding the Fourth Proportional to 4,225.12, 6,337.68 and 1,147.12

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Solution

The fourth proportional to 4,225.12, 6,337.68 and 1,147.12 is: 1,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,225.12 : 6,337.68 = 1,147.12 : x
  2. Step 2: Convert to fraction form
    4,225.12/6,337.68 = 1,147.12/x
  3. Step 3: Cross multiply
    4,225.12x = 6,337.68 × 1,147.12
  4. Step 4: Simplify right side
    4,225.12x = 7,270,079.48
  5. Step 5: Solve for x
    x = 7,270,079.48/4,225.12
  6. Step 6: Final answer
    x = 1,720.68

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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.