Home / 5,135.23-7,084.95-2,866.20

Finding the Fourth Proportional to 5,135.23, 7,084.95 and 2,866.20

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Solution

The fourth proportional to 5,135.23, 7,084.95 and 2,866.20 is: 3,954.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.23 : 7,084.95 = 2,866.20 : x
  2. Step 2: Convert to fraction form
    5,135.23/7,084.95 = 2,866.20/x
  3. Step 3: Cross multiply
    5,135.23x = 7,084.95 × 2,866.20
  4. Step 4: Simplify right side
    5,135.23x = 20,306,866.41
  5. Step 5: Solve for x
    x = 20,306,866.41/5,135.23
  6. Step 6: Final answer
    x = 3,954.42

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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.