Home / 7,221.29-9,961.58-4,864.19

Finding the Fourth Proportional to 7,221.29, 9,961.58 and 4,864.19

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Solution

The fourth proportional to 7,221.29, 9,961.58 and 4,864.19 is: 6,710.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.29 : 9,961.58 = 4,864.19 : x
  2. Step 2: Convert to fraction form
    7,221.29/9,961.58 = 4,864.19/x
  3. Step 3: Cross multiply
    7,221.29x = 9,961.58 × 4,864.19
  4. Step 4: Simplify right side
    7,221.29x = 48,454,980.17
  5. Step 5: Solve for x
    x = 48,454,980.17/7,221.29
  6. Step 6: Final answer
    x = 6,710.02

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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.