Home / 6,439.32-9,657.90-2,928.24

Finding the Fourth Proportional to 6,439.32, 9,657.90 and 2,928.24

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Solution

The fourth proportional to 6,439.32, 9,657.90 and 2,928.24 is: 4,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.32 : 9,657.90 = 2,928.24 : x
  2. Step 2: Convert to fraction form
    6,439.32/9,657.90 = 2,928.24/x
  3. Step 3: Cross multiply
    6,439.32x = 9,657.90 × 2,928.24
  4. Step 4: Simplify right side
    6,439.32x = 28,280,649.10
  5. Step 5: Solve for x
    x = 28,280,649.10/6,439.32
  6. Step 6: Final answer
    x = 4,391.87

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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.