Home / 5,478.36-7,560.80-3,088.79

Finding the Fourth Proportional to 5,478.36, 7,560.80 and 3,088.79

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Solution

The fourth proportional to 5,478.36, 7,560.80 and 3,088.79 is: 4,262.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.36 : 7,560.80 = 3,088.79 : x
  2. Step 2: Convert to fraction form
    5,478.36/7,560.80 = 3,088.79/x
  3. Step 3: Cross multiply
    5,478.36x = 7,560.80 × 3,088.79
  4. Step 4: Simplify right side
    5,478.36x = 23,353,691.89
  5. Step 5: Solve for x
    x = 23,353,691.89/5,478.36
  6. Step 6: Final answer
    x = 4,262.90

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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.