Home / 6,421.47-9,633.08-3,132.28

Finding the Fourth Proportional to 6,421.47, 9,633.08 and 3,132.28

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Solution

The fourth proportional to 6,421.47, 9,633.08 and 3,132.28 is: 4,698.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.47 : 9,633.08 = 3,132.28 : x
  2. Step 2: Convert to fraction form
    6,421.47/9,633.08 = 3,132.28/x
  3. Step 3: Cross multiply
    6,421.47x = 9,633.08 × 3,132.28
  4. Step 4: Simplify right side
    6,421.47x = 30,173,503.82
  5. Step 5: Solve for x
    x = 30,173,503.82/6,421.47
  6. Step 6: Final answer
    x = 4,698.85

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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.