Home / 4,331.04-6,488.40-2,137.20

Finding the Fourth Proportional to 4,331.04, 6,488.40 and 2,137.20

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Solution

The fourth proportional to 4,331.04, 6,488.40 and 2,137.20 is: 3,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,331.04 : 6,488.40 = 2,137.20 : x
  2. Step 2: Convert to fraction form
    4,331.04/6,488.40 = 2,137.20/x
  3. Step 3: Cross multiply
    4,331.04x = 6,488.40 × 2,137.20
  4. Step 4: Simplify right side
    4,331.04x = 13,867,008.48
  5. Step 5: Solve for x
    x = 13,867,008.48/4,331.04
  6. Step 6: Final answer
    x = 3,201.77

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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.