Home / 5,616.56-7,748.70-3,378.98

Finding the Fourth Proportional to 5,616.56, 7,748.70 and 3,378.98

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Solution

The fourth proportional to 5,616.56, 7,748.70 and 3,378.98 is: 4,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.56 : 7,748.70 = 3,378.98 : x
  2. Step 2: Convert to fraction form
    5,616.56/7,748.70 = 3,378.98/x
  3. Step 3: Cross multiply
    5,616.56x = 7,748.70 × 3,378.98
  4. Step 4: Simplify right side
    5,616.56x = 26,182,702.33
  5. Step 5: Solve for x
    x = 26,182,702.33/5,616.56
  6. Step 6: Final answer
    x = 4,661.70

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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.