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Finding the Fourth Proportional to 2,603.60, 3,599.88 and 2,275.55

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Solution

The fourth proportional to 2,603.60, 3,599.88 and 2,275.55 is: 3,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.60 : 3,599.88 = 2,275.55 : x
  2. Step 2: Convert to fraction form
    2,603.60/3,599.88 = 2,275.55/x
  3. Step 3: Cross multiply
    2,603.60x = 3,599.88 × 2,275.55
  4. Step 4: Simplify right side
    2,603.60x = 8,191,706.93
  5. Step 5: Solve for x
    x = 8,191,706.93/2,603.60
  6. Step 6: Final answer
    x = 3,146.30

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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.