Home / 7,219.11-9,958.78-4,702.68

Finding the Fourth Proportional to 7,219.11, 9,958.78 and 4,702.68

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Solution

The fourth proportional to 7,219.11, 9,958.78 and 4,702.68 is: 6,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.11 : 9,958.78 = 4,702.68 : x
  2. Step 2: Convert to fraction form
    7,219.11/9,958.78 = 4,702.68/x
  3. Step 3: Cross multiply
    7,219.11x = 9,958.78 × 4,702.68
  4. Step 4: Simplify right side
    7,219.11x = 46,832,955.53
  5. Step 5: Solve for x
    x = 46,832,955.53/7,219.11
  6. Step 6: Final answer
    x = 6,487.36

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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.