Home / 3,280.40-4,922.18-1,637.18

Finding the Fourth Proportional to 3,280.40, 4,922.18 and 1,637.18

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Solution

The fourth proportional to 3,280.40, 4,922.18 and 1,637.18 is: 2,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.40 : 4,922.18 = 1,637.18 : x
  2. Step 2: Convert to fraction form
    3,280.40/4,922.18 = 1,637.18/x
  3. Step 3: Cross multiply
    3,280.40x = 4,922.18 × 1,637.18
  4. Step 4: Simplify right side
    3,280.40x = 8,058,461.86
  5. Step 5: Solve for x
    x = 8,058,461.86/3,280.40
  6. Step 6: Final answer
    x = 2,456.55

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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.