Home / 4,378.56-6,562.34-2,187.90

Finding the Fourth Proportional to 4,378.56, 6,562.34 and 2,187.90

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Solution

The fourth proportional to 4,378.56, 6,562.34 and 2,187.90 is: 3,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.56 : 6,562.34 = 2,187.90 : x
  2. Step 2: Convert to fraction form
    4,378.56/6,562.34 = 2,187.90/x
  3. Step 3: Cross multiply
    4,378.56x = 6,562.34 × 2,187.90
  4. Step 4: Simplify right side
    4,378.56x = 14,357,743.69
  5. Step 5: Solve for x
    x = 14,357,743.69/4,378.56
  6. Step 6: Final answer
    x = 3,279.10

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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.