Home / 5,520.54-7,616.40-3,130.16

Finding the Fourth Proportional to 5,520.54, 7,616.40 and 3,130.16

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Solution

The fourth proportional to 5,520.54, 7,616.40 and 3,130.16 is: 4,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.54 : 7,616.40 = 3,130.16 : x
  2. Step 2: Convert to fraction form
    5,520.54/7,616.40 = 3,130.16/x
  3. Step 3: Cross multiply
    5,520.54x = 7,616.40 × 3,130.16
  4. Step 4: Simplify right side
    5,520.54x = 23,840,512.54
  5. Step 5: Solve for x
    x = 23,840,512.54/5,520.54
  6. Step 6: Final answer
    x = 4,318.51

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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.