Home / 5,254.95-7,878.47-2,480.04

Finding the Fourth Proportional to 5,254.95, 7,878.47 and 2,480.04

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Solution

The fourth proportional to 5,254.95, 7,878.47 and 2,480.04 is: 3,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.95 : 7,878.47 = 2,480.04 : x
  2. Step 2: Convert to fraction form
    5,254.95/7,878.47 = 2,480.04/x
  3. Step 3: Cross multiply
    5,254.95x = 7,878.47 × 2,480.04
  4. Step 4: Simplify right side
    5,254.95x = 19,538,907.52
  5. Step 5: Solve for x
    x = 19,538,907.52/5,254.95
  6. Step 6: Final answer
    x = 3,718.19

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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.