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Finding the Fourth Proportional to 4,499.70, 6,750.98 and 1,868.47

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Solution

The fourth proportional to 4,499.70, 6,750.98 and 1,868.47 is: 2,803.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,499.70 : 6,750.98 = 1,868.47 : x
  2. Step 2: Convert to fraction form
    4,499.70/6,750.98 = 1,868.47/x
  3. Step 3: Cross multiply
    4,499.70x = 6,750.98 × 1,868.47
  4. Step 4: Simplify right side
    4,499.70x = 12,613,984.39
  5. Step 5: Solve for x
    x = 12,613,984.39/4,499.70
  6. Step 6: Final answer
    x = 2,803.29

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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.