Home / 3,156.80-4,729.57-1,923.57

Finding the Fourth Proportional to 3,156.80, 4,729.57 and 1,923.57

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Solution

The fourth proportional to 3,156.80, 4,729.57 and 1,923.57 is: 2,881.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.80 : 4,729.57 = 1,923.57 : x
  2. Step 2: Convert to fraction form
    3,156.80/4,729.57 = 1,923.57/x
  3. Step 3: Cross multiply
    3,156.80x = 4,729.57 × 1,923.57
  4. Step 4: Simplify right side
    3,156.80x = 9,097,658.96
  5. Step 5: Solve for x
    x = 9,097,658.96/3,156.80
  6. Step 6: Final answer
    x = 2,881.92

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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.