Home / 4,721.09-7,109.74-4,112.15

Finding the Fourth Proportional to 4,721.09, 7,109.74 and 4,112.15

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Solution

The fourth proportional to 4,721.09, 7,109.74 and 4,112.15 is: 6,192.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.09 : 7,109.74 = 4,112.15 : x
  2. Step 2: Convert to fraction form
    4,721.09/7,109.74 = 4,112.15/x
  3. Step 3: Cross multiply
    4,721.09x = 7,109.74 × 4,112.15
  4. Step 4: Simplify right side
    4,721.09x = 29,236,279.01
  5. Step 5: Solve for x
    x = 29,236,279.01/4,721.09
  6. Step 6: Final answer
    x = 6,192.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.