Home / 5,177.76-7,768.18-2,988.06

Finding the Fourth Proportional to 5,177.76, 7,768.18 and 2,988.06

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Solution

The fourth proportional to 5,177.76, 7,768.18 and 2,988.06 is: 4,482.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.76 : 7,768.18 = 2,988.06 : x
  2. Step 2: Convert to fraction form
    5,177.76/7,768.18 = 2,988.06/x
  3. Step 3: Cross multiply
    5,177.76x = 7,768.18 × 2,988.06
  4. Step 4: Simplify right side
    5,177.76x = 23,211,787.93
  5. Step 5: Solve for x
    x = 23,211,787.93/5,177.76
  6. Step 6: Final answer
    x = 4,482.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.