Home / 4,764.40-7,141.46-1,988.98

Finding the Fourth Proportional to 4,764.40, 7,141.46 and 1,988.98

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Solution

The fourth proportional to 4,764.40, 7,141.46 and 1,988.98 is: 2,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,764.40 : 7,141.46 = 1,988.98 : x
  2. Step 2: Convert to fraction form
    4,764.40/7,141.46 = 1,988.98/x
  3. Step 3: Cross multiply
    4,764.40x = 7,141.46 × 1,988.98
  4. Step 4: Simplify right side
    4,764.40x = 14,204,221.11
  5. Step 5: Solve for x
    x = 14,204,221.11/4,764.40
  6. Step 6: Final answer
    x = 2,981.32

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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.