Home / 4,721.18-7,081.40-1,434.29

Finding the Fourth Proportional to 4,721.18, 7,081.40 and 1,434.29

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Solution

The fourth proportional to 4,721.18, 7,081.40 and 1,434.29 is: 2,151.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.18 : 7,081.40 = 1,434.29 : x
  2. Step 2: Convert to fraction form
    4,721.18/7,081.40 = 1,434.29/x
  3. Step 3: Cross multiply
    4,721.18x = 7,081.40 × 1,434.29
  4. Step 4: Simplify right side
    4,721.18x = 10,156,738.63
  5. Step 5: Solve for x
    x = 10,156,738.63/4,721.18
  6. Step 6: Final answer
    x = 2,151.32

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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.