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Finding the Fourth Proportional to 2,695.60, 4,045.80 and 2,330.80

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Solution

The fourth proportional to 2,695.60, 4,045.80 and 2,330.80 is: 3,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.60 : 4,045.80 = 2,330.80 : x
  2. Step 2: Convert to fraction form
    2,695.60/4,045.80 = 2,330.80/x
  3. Step 3: Cross multiply
    2,695.60x = 4,045.80 × 2,330.80
  4. Step 4: Simplify right side
    2,695.60x = 9,429,950.64
  5. Step 5: Solve for x
    x = 9,429,950.64/2,695.60
  6. Step 6: Final answer
    x = 3,498.28

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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.