Home / 5,780.16-7,976.58-3,127.54

Finding the Fourth Proportional to 5,780.16, 7,976.58 and 3,127.54

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Solution

The fourth proportional to 5,780.16, 7,976.58 and 3,127.54 is: 4,315.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.16 : 7,976.58 = 3,127.54 : x
  2. Step 2: Convert to fraction form
    5,780.16/7,976.58 = 3,127.54/x
  3. Step 3: Cross multiply
    5,780.16x = 7,976.58 × 3,127.54
  4. Step 4: Simplify right side
    5,780.16x = 24,947,073.01
  5. Step 5: Solve for x
    x = 24,947,073.01/5,780.16
  6. Step 6: Final answer
    x = 4,315.98

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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.