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Finding the Fourth Proportional to 2,887.85, 4,332.04 and 807.89

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Solution

The fourth proportional to 2,887.85, 4,332.04 and 807.89 is: 1,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.85 : 4,332.04 = 807.89 : x
  2. Step 2: Convert to fraction form
    2,887.85/4,332.04 = 807.89/x
  3. Step 3: Cross multiply
    2,887.85x = 4,332.04 × 807.89
  4. Step 4: Simplify right side
    2,887.85x = 3,499,814.76
  5. Step 5: Solve for x
    x = 3,499,814.76/2,887.85
  6. Step 6: Final answer
    x = 1,211.91

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.