Home / 5,644.90-7,790.25-3,127.29

Finding the Fourth Proportional to 5,644.90, 7,790.25 and 3,127.29

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Solution

The fourth proportional to 5,644.90, 7,790.25 and 3,127.29 is: 4,315.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.90 : 7,790.25 = 3,127.29 : x
  2. Step 2: Convert to fraction form
    5,644.90/7,790.25 = 3,127.29/x
  3. Step 3: Cross multiply
    5,644.90x = 7,790.25 × 3,127.29
  4. Step 4: Simplify right side
    5,644.90x = 24,362,370.92
  5. Step 5: Solve for x
    x = 24,362,370.92/5,644.90
  6. Step 6: Final answer
    x = 4,315.82

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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.