Home / 7,402.20-11,108.75-3,506.59

Finding the Fourth Proportional to 7,402.20, 11,108.75 and 3,506.59

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Solution

The fourth proportional to 7,402.20, 11,108.75 and 3,506.59 is: 5,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.20 : 11,108.75 = 3,506.59 : x
  2. Step 2: Convert to fraction form
    7,402.20/11,108.75 = 3,506.59/x
  3. Step 3: Cross multiply
    7,402.20x = 11,108.75 × 3,506.59
  4. Step 4: Simplify right side
    7,402.20x = 38,953,831.66
  5. Step 5: Solve for x
    x = 38,953,831.66/7,402.20
  6. Step 6: Final answer
    x = 5,262.47

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1.5x scale

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.