Home / 1,756.11-2,632.13-659.78

Finding the Fourth Proportional to 1,756.11, 2,632.13 and 659.78

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Solution

The fourth proportional to 1,756.11, 2,632.13 and 659.78 is: 988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.11 : 2,632.13 = 659.78 : x
  2. Step 2: Convert to fraction form
    1,756.11/2,632.13 = 659.78/x
  3. Step 3: Cross multiply
    1,756.11x = 2,632.13 × 659.78
  4. Step 4: Simplify right side
    1,756.11x = 1,736,610.27
  5. Step 5: Solve for x
    x = 1,736,610.27/1,756.11
  6. Step 6: Final answer
    x = 988.90

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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.