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Finding the Fourth Proportional to 1,149.42, 1,586.00 and 750.98

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Solution

The fourth proportional to 1,149.42, 1,586.00 and 750.98 is: 1,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.42 : 1,586.00 = 750.98 : x
  2. Step 2: Convert to fraction form
    1,149.42/1,586.00 = 750.98/x
  3. Step 3: Cross multiply
    1,149.42x = 1,586.00 × 750.98
  4. Step 4: Simplify right side
    1,149.42x = 1,191,055.90
  5. Step 5: Solve for x
    x = 1,191,055.90/1,149.42
  6. Step 6: Final answer
    x = 1,036.22

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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.