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Finding the Fourth Proportional to 1,740.02, 2,610.86 and 765.99

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Solution

The fourth proportional to 1,740.02, 2,610.86 and 765.99 is: 1,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.02 : 2,610.86 = 765.99 : x
  2. Step 2: Convert to fraction form
    1,740.02/2,610.86 = 765.99/x
  3. Step 3: Cross multiply
    1,740.02x = 2,610.86 × 765.99
  4. Step 4: Simplify right side
    1,740.02x = 1,999,888.82
  5. Step 5: Solve for x
    x = 1,999,888.82/1,740.02
  6. Step 6: Final answer
    x = 1,149.35

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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.