Home / 5,564.40-7,679.16-3,206.76

Finding the Fourth Proportional to 5,564.40, 7,679.16 and 3,206.76

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Solution

The fourth proportional to 5,564.40, 7,679.16 and 3,206.76 is: 4,425.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,564.40 : 7,679.16 = 3,206.76 : x
  2. Step 2: Convert to fraction form
    5,564.40/7,679.16 = 3,206.76/x
  3. Step 3: Cross multiply
    5,564.40x = 7,679.16 × 3,206.76
  4. Step 4: Simplify right side
    5,564.40x = 24,625,223.12
  5. Step 5: Solve for x
    x = 24,625,223.12/5,564.40
  6. Step 6: Final answer
    x = 4,425.49

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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.