Home / 1,756.20-2,634.75-660.57

Finding the Fourth Proportional to 1,756.20, 2,634.75 and 660.57

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Solution

The fourth proportional to 1,756.20, 2,634.75 and 660.57 is: 991.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.20 : 2,634.75 = 660.57 : x
  2. Step 2: Convert to fraction form
    1,756.20/2,634.75 = 660.57/x
  3. Step 3: Cross multiply
    1,756.20x = 2,634.75 × 660.57
  4. Step 4: Simplify right side
    1,756.20x = 1,740,436.81
  5. Step 5: Solve for x
    x = 1,740,436.81/1,756.20
  6. Step 6: Final answer
    x = 991.02

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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.