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Finding the Fourth Proportional to 2,656.55, 4,002.55 and 2,406.70

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Solution

The fourth proportional to 2,656.55, 4,002.55 and 2,406.70 is: 3,626.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.55 : 4,002.55 = 2,406.70 : x
  2. Step 2: Convert to fraction form
    2,656.55/4,002.55 = 2,406.70/x
  3. Step 3: Cross multiply
    2,656.55x = 4,002.55 × 2,406.70
  4. Step 4: Simplify right side
    2,656.55x = 9,632,949.61
  5. Step 5: Solve for x
    x = 9,632,949.61/2,656.55
  6. Step 6: Final answer
    x = 3,626.11

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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.