Home / 6,347.31-9,521.87-2,186.20

Finding the Fourth Proportional to 6,347.31, 9,521.87 and 2,186.20

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Solution

The fourth proportional to 6,347.31, 9,521.87 and 2,186.20 is: 3,279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.31 : 9,521.87 = 2,186.20 : x
  2. Step 2: Convert to fraction form
    6,347.31/9,521.87 = 2,186.20/x
  3. Step 3: Cross multiply
    6,347.31x = 9,521.87 × 2,186.20
  4. Step 4: Simplify right side
    6,347.31x = 20,816,725.46
  5. Step 5: Solve for x
    x = 20,816,725.46/6,347.31
  6. Step 6: Final answer
    x = 3,279.62

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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.