Home / 6,579.84-9,077.76-4,221.12

Finding the Fourth Proportional to 6,579.84, 9,077.76 and 4,221.12

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Solution

The fourth proportional to 6,579.84, 9,077.76 and 4,221.12 is: 5,823.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,579.84 : 9,077.76 = 4,221.12 : x
  2. Step 2: Convert to fraction form
    6,579.84/9,077.76 = 4,221.12/x
  3. Step 3: Cross multiply
    6,579.84x = 9,077.76 × 4,221.12
  4. Step 4: Simplify right side
    6,579.84x = 38,318,314.29
  5. Step 5: Solve for x
    x = 38,318,314.29/6,579.84
  6. Step 6: Final answer
    x = 5,823.59

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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.