Home / 5,618.11-8,434.46-4,320.49

Finding the Fourth Proportional to 5,618.11, 8,434.46 and 4,320.49

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Solution

The fourth proportional to 5,618.11, 8,434.46 and 4,320.49 is: 6,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.11 : 8,434.46 = 4,320.49 : x
  2. Step 2: Convert to fraction form
    5,618.11/8,434.46 = 4,320.49/x
  3. Step 3: Cross multiply
    5,618.11x = 8,434.46 × 4,320.49
  4. Step 4: Simplify right side
    5,618.11x = 36,441,000.09
  5. Step 5: Solve for x
    x = 36,441,000.09/5,618.11
  6. Step 6: Final answer
    x = 6,486.35

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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.