Home / 5,777.30-7,972.70-3,124.72

Finding the Fourth Proportional to 5,777.30, 7,972.70 and 3,124.72

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Solution

The fourth proportional to 5,777.30, 7,972.70 and 3,124.72 is: 4,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.30 : 7,972.70 = 3,124.72 : x
  2. Step 2: Convert to fraction form
    5,777.30/7,972.70 = 3,124.72/x
  3. Step 3: Cross multiply
    5,777.30x = 7,972.70 × 3,124.72
  4. Step 4: Simplify right side
    5,777.30x = 24,912,455.14
  5. Step 5: Solve for x
    x = 24,912,455.14/5,777.30
  6. Step 6: Final answer
    x = 4,312.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.