Home / 4,921.95-7,382.86-2,948.13

Finding the Fourth Proportional to 4,921.95, 7,382.86 and 2,948.13

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Solution

The fourth proportional to 4,921.95, 7,382.86 and 2,948.13 is: 4,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.95 : 7,382.86 = 2,948.13 : x
  2. Step 2: Convert to fraction form
    4,921.95/7,382.86 = 2,948.13/x
  3. Step 3: Cross multiply
    4,921.95x = 7,382.86 × 2,948.13
  4. Step 4: Simplify right side
    4,921.95x = 21,765,631.05
  5. Step 5: Solve for x
    x = 21,765,631.05/4,921.95
  6. Step 6: Final answer
    x = 4,422.16

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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.