Home / 4,292.89-6,439.77-1,331.23

Finding the Fourth Proportional to 4,292.89, 6,439.77 and 1,331.23

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Solution

The fourth proportional to 4,292.89, 6,439.77 and 1,331.23 is: 1,996.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.89 : 6,439.77 = 1,331.23 : x
  2. Step 2: Convert to fraction form
    4,292.89/6,439.77 = 1,331.23/x
  3. Step 3: Cross multiply
    4,292.89x = 6,439.77 × 1,331.23
  4. Step 4: Simplify right side
    4,292.89x = 8,572,815.02
  5. Step 5: Solve for x
    x = 8,572,815.02/4,292.89
  6. Step 6: Final answer
    x = 1,996.98

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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.