Home / 4,868.40-6,718.52-2,979.95

Finding the Fourth Proportional to 4,868.40, 6,718.52 and 2,979.95

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Solution

The fourth proportional to 4,868.40, 6,718.52 and 2,979.95 is: 4,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.40 : 6,718.52 = 2,979.95 : x
  2. Step 2: Convert to fraction form
    4,868.40/6,718.52 = 2,979.95/x
  3. Step 3: Cross multiply
    4,868.40x = 6,718.52 × 2,979.95
  4. Step 4: Simplify right side
    4,868.40x = 20,020,805.18
  5. Step 5: Solve for x
    x = 20,020,805.18/4,868.40
  6. Step 6: Final answer
    x = 4,112.40

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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.