Home / 2,445.02-3,686.68-2,240.90

Finding the Fourth Proportional to 2,445.02, 3,686.68 and 2,240.90

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Solution

The fourth proportional to 2,445.02, 3,686.68 and 2,240.90 is: 3,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.02 : 3,686.68 = 2,240.90 : x
  2. Step 2: Convert to fraction form
    2,445.02/3,686.68 = 2,240.90/x
  3. Step 3: Cross multiply
    2,445.02x = 3,686.68 × 2,240.90
  4. Step 4: Simplify right side
    2,445.02x = 8,261,481.21
  5. Step 5: Solve for x
    x = 8,261,481.21/2,445.02
  6. Step 6: Final answer
    x = 3,378.90

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.