Home / 5,633.28-8,421.12-4,158.72

Finding the Fourth Proportional to 5,633.28, 8,421.12 and 4,158.72

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Solution

The fourth proportional to 5,633.28, 8,421.12 and 4,158.72 is: 6,216.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,633.28 : 8,421.12 = 4,158.72 : x
  2. Step 2: Convert to fraction form
    5,633.28/8,421.12 = 4,158.72/x
  3. Step 3: Cross multiply
    5,633.28x = 8,421.12 × 4,158.72
  4. Step 4: Simplify right side
    5,633.28x = 35,021,080.17
  5. Step 5: Solve for x
    x = 35,021,080.17/5,633.28
  6. Step 6: Final answer
    x = 6,216.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.