Home / 5,218.78-7,202.10-2,860.93

Finding the Fourth Proportional to 5,218.78, 7,202.10 and 2,860.93

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Solution

The fourth proportional to 5,218.78, 7,202.10 and 2,860.93 is: 3,948.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.78 : 7,202.10 = 2,860.93 : x
  2. Step 2: Convert to fraction form
    5,218.78/7,202.10 = 2,860.93/x
  3. Step 3: Cross multiply
    5,218.78x = 7,202.10 × 2,860.93
  4. Step 4: Simplify right side
    5,218.78x = 20,604,703.95
  5. Step 5: Solve for x
    x = 20,604,703.95/5,218.78
  6. Step 6: Final answer
    x = 3,948.18

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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.