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Finding the Fourth Proportional to 1,360.89, 2,041.29 and 744.89

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Solution

The fourth proportional to 1,360.89, 2,041.29 and 744.89 is: 1,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.89 : 2,041.29 = 744.89 : x
  2. Step 2: Convert to fraction form
    1,360.89/2,041.29 = 744.89/x
  3. Step 3: Cross multiply
    1,360.89x = 2,041.29 × 744.89
  4. Step 4: Simplify right side
    1,360.89x = 1,520,526.30
  5. Step 5: Solve for x
    x = 1,520,526.30/1,360.89
  6. Step 6: Final answer
    x = 1,117.30

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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.