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Finding the Fourth Proportional to 2,666.76, 4,000.28 and 935.52

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Solution

The fourth proportional to 2,666.76, 4,000.28 and 935.52 is: 1,403.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.76 : 4,000.28 = 935.52 : x
  2. Step 2: Convert to fraction form
    2,666.76/4,000.28 = 935.52/x
  3. Step 3: Cross multiply
    2,666.76x = 4,000.28 × 935.52
  4. Step 4: Simplify right side
    2,666.76x = 3,742,341.95
  5. Step 5: Solve for x
    x = 3,742,341.95/2,666.76
  6. Step 6: Final answer
    x = 1,403.33

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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.