Home / 6,631.39-9,158.45-4,119.47

Finding the Fourth Proportional to 6,631.39, 9,158.45 and 4,119.47

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Solution

The fourth proportional to 6,631.39, 9,158.45 and 4,119.47 is: 5,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.39 : 9,158.45 = 4,119.47 : x
  2. Step 2: Convert to fraction form
    6,631.39/9,158.45 = 4,119.47/x
  3. Step 3: Cross multiply
    6,631.39x = 9,158.45 × 4,119.47
  4. Step 4: Simplify right side
    6,631.39x = 37,727,893.63
  5. Step 5: Solve for x
    x = 37,727,893.63/6,631.39
  6. Step 6: Final answer
    x = 5,689.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.