Home / 5,251.95-7,878.23-1,356.25

Finding the Fourth Proportional to 5,251.95, 7,878.23 and 1,356.25

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Solution

The fourth proportional to 5,251.95, 7,878.23 and 1,356.25 is: 2,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.95 : 7,878.23 = 1,356.25 : x
  2. Step 2: Convert to fraction form
    5,251.95/7,878.23 = 1,356.25/x
  3. Step 3: Cross multiply
    5,251.95x = 7,878.23 × 1,356.25
  4. Step 4: Simplify right side
    5,251.95x = 10,684,849.44
  5. Step 5: Solve for x
    x = 10,684,849.44/5,251.95
  6. Step 6: Final answer
    x = 2,034.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.