Home / 4,311.60-6,467.47-1,389.92

Finding the Fourth Proportional to 4,311.60, 6,467.47 and 1,389.92

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Solution

The fourth proportional to 4,311.60, 6,467.47 and 1,389.92 is: 2,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.60 : 6,467.47 = 1,389.92 : x
  2. Step 2: Convert to fraction form
    4,311.60/6,467.47 = 1,389.92/x
  3. Step 3: Cross multiply
    4,311.60x = 6,467.47 × 1,389.92
  4. Step 4: Simplify right side
    4,311.60x = 8,989,265.90
  5. Step 5: Solve for x
    x = 8,989,265.90/4,311.60
  6. Step 6: Final answer
    x = 2,084.90

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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.