Home / 6,439.19-9,658.98-2,278.62

Finding the Fourth Proportional to 6,439.19, 9,658.98 and 2,278.62

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Solution

The fourth proportional to 6,439.19, 9,658.98 and 2,278.62 is: 3,418.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.19 : 9,658.98 = 2,278.62 : x
  2. Step 2: Convert to fraction form
    6,439.19/9,658.98 = 2,278.62/x
  3. Step 3: Cross multiply
    6,439.19x = 9,658.98 × 2,278.62
  4. Step 4: Simplify right side
    6,439.19x = 22,009,145.01
  5. Step 5: Solve for x
    x = 22,009,145.01/6,439.19
  6. Step 6: Final answer
    x = 3,418.00

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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.