Home / 7,073.85-9,761.88-3,930.06

Finding the Fourth Proportional to 7,073.85, 9,761.88 and 3,930.06

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Solution

The fourth proportional to 7,073.85, 9,761.88 and 3,930.06 is: 5,423.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.85 : 9,761.88 = 3,930.06 : x
  2. Step 2: Convert to fraction form
    7,073.85/9,761.88 = 3,930.06/x
  3. Step 3: Cross multiply
    7,073.85x = 9,761.88 × 3,930.06
  4. Step 4: Simplify right side
    7,073.85x = 38,364,774.11
  5. Step 5: Solve for x
    x = 38,364,774.11/7,073.85
  6. Step 6: Final answer
    x = 5,423.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.