Home / 6,439.47-9,652.68-2,278.50

Finding the Fourth Proportional to 6,439.47, 9,652.68 and 2,278.50

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Solution

The fourth proportional to 6,439.47, 9,652.68 and 2,278.50 is: 3,415.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.47 : 9,652.68 = 2,278.50 : x
  2. Step 2: Convert to fraction form
    6,439.47/9,652.68 = 2,278.50/x
  3. Step 3: Cross multiply
    6,439.47x = 9,652.68 × 2,278.50
  4. Step 4: Simplify right side
    6,439.47x = 21,993,631.38
  5. Step 5: Solve for x
    x = 21,993,631.38/6,439.47
  6. Step 6: Final answer
    x = 3,415.44

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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.