Home / 2,959.95-4,441.28-1,111.21

Finding the Fourth Proportional to 2,959.95, 4,441.28 and 1,111.21

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Solution

The fourth proportional to 2,959.95, 4,441.28 and 1,111.21 is: 1,667.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.95 : 4,441.28 = 1,111.21 : x
  2. Step 2: Convert to fraction form
    2,959.95/4,441.28 = 1,111.21/x
  3. Step 3: Cross multiply
    2,959.95x = 4,441.28 × 1,111.21
  4. Step 4: Simplify right side
    2,959.95x = 4,935,194.75
  5. Step 5: Solve for x
    x = 4,935,194.75/2,959.95
  6. Step 6: Final answer
    x = 1,667.32

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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.