Home / 3,702.60-5,549.40-1,618.20

Finding the Fourth Proportional to 3,702.60, 5,549.40 and 1,618.20

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Solution

The fourth proportional to 3,702.60, 5,549.40 and 1,618.20 is: 2,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.60 : 5,549.40 = 1,618.20 : x
  2. Step 2: Convert to fraction form
    3,702.60/5,549.40 = 1,618.20/x
  3. Step 3: Cross multiply
    3,702.60x = 5,549.40 × 1,618.20
  4. Step 4: Simplify right side
    3,702.60x = 8,980,039.08
  5. Step 5: Solve for x
    x = 8,980,039.08/3,702.60
  6. Step 6: Final answer
    x = 2,425.33

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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.