Home / 1,487.42-2,231-1,166.66

Finding the Fourth Proportional to 1,487.42, 2,231 and 1,166.66

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Solution

The fourth proportional to 1,487.42, 2,231 and 1,166.66 is: 1,749.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.42 : 2,231 = 1,166.66 : x
  2. Step 2: Convert to fraction form
    1,487.42/2,231 = 1,166.66/x
  3. Step 3: Cross multiply
    1,487.42x = 2,231 × 1,166.66
  4. Step 4: Simplify right side
    1,487.42x = 2,602,818.46
  5. Step 5: Solve for x
    x = 2,602,818.46/1,487.42
  6. Step 6: Final answer
    x = 1,749.89

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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.