Home / 4,721.05-7,081.20-1,434.16

Finding the Fourth Proportional to 4,721.05, 7,081.20 and 1,434.16

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Solution

The fourth proportional to 4,721.05, 7,081.20 and 1,434.16 is: 2,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.05 : 7,081.20 = 1,434.16 : x
  2. Step 2: Convert to fraction form
    4,721.05/7,081.20 = 1,434.16/x
  3. Step 3: Cross multiply
    4,721.05x = 7,081.20 × 1,434.16
  4. Step 4: Simplify right side
    4,721.05x = 10,155,573.79
  5. Step 5: Solve for x
    x = 10,155,573.79/4,721.05
  6. Step 6: Final answer
    x = 2,151.13

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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.