Home / 2,988.60-4,124.23-1,644.18

Finding the Fourth Proportional to 2,988.60, 4,124.23 and 1,644.18

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Solution

The fourth proportional to 2,988.60, 4,124.23 and 1,644.18 is: 2,268.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.60 : 4,124.23 = 1,644.18 : x
  2. Step 2: Convert to fraction form
    2,988.60/4,124.23 = 1,644.18/x
  3. Step 3: Cross multiply
    2,988.60x = 4,124.23 × 1,644.18
  4. Step 4: Simplify right side
    2,988.60x = 6,780,976.48
  5. Step 5: Solve for x
    x = 6,780,976.48/2,988.60
  6. Step 6: Final answer
    x = 2,268.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.