Home / 4,292.90-6,439.28-1,371.18

Finding the Fourth Proportional to 4,292.90, 6,439.28 and 1,371.18

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Solution

The fourth proportional to 4,292.90, 6,439.28 and 1,371.18 is: 2,056.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.90 : 6,439.28 = 1,371.18 : x
  2. Step 2: Convert to fraction form
    4,292.90/6,439.28 = 1,371.18/x
  3. Step 3: Cross multiply
    4,292.90x = 6,439.28 × 1,371.18
  4. Step 4: Simplify right side
    4,292.90x = 8,829,405.09
  5. Step 5: Solve for x
    x = 8,829,405.09/4,292.90
  6. Step 6: Final answer
    x = 2,056.75

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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.