Home / 2,979.16-4,470.19-1,225.46

Finding the Fourth Proportional to 2,979.16, 4,470.19 and 1,225.46

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Solution

The fourth proportional to 2,979.16, 4,470.19 and 1,225.46 is: 1,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.16 : 4,470.19 = 1,225.46 : x
  2. Step 2: Convert to fraction form
    2,979.16/4,470.19 = 1,225.46/x
  3. Step 3: Cross multiply
    2,979.16x = 4,470.19 × 1,225.46
  4. Step 4: Simplify right side
    2,979.16x = 5,478,047.15
  5. Step 5: Solve for x
    x = 5,478,047.15/2,979.16
  6. Step 6: Final answer
    x = 1,838.79

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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.