Home / 5,154.68-7,729.50-1,866.98

Finding the Fourth Proportional to 5,154.68, 7,729.50 and 1,866.98

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Solution

The fourth proportional to 5,154.68, 7,729.50 and 1,866.98 is: 2,799.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.68 : 7,729.50 = 1,866.98 : x
  2. Step 2: Convert to fraction form
    5,154.68/7,729.50 = 1,866.98/x
  3. Step 3: Cross multiply
    5,154.68x = 7,729.50 × 1,866.98
  4. Step 4: Simplify right side
    5,154.68x = 14,430,821.91
  5. Step 5: Solve for x
    x = 14,430,821.91/5,154.68
  6. Step 6: Final answer
    x = 2,799.56

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1.5x scale

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.