Home / 7,520.51-11,279.86-1,974.29

Finding the Fourth Proportional to 7,520.51, 11,279.86 and 1,974.29

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Solution

The fourth proportional to 7,520.51, 11,279.86 and 1,974.29 is: 2,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.51 : 11,279.86 = 1,974.29 : x
  2. Step 2: Convert to fraction form
    7,520.51/11,279.86 = 1,974.29/x
  3. Step 3: Cross multiply
    7,520.51x = 11,279.86 × 1,974.29
  4. Step 4: Simplify right side
    7,520.51x = 22,269,714.80
  5. Step 5: Solve for x
    x = 22,269,714.80/7,520.51
  6. Step 6: Final answer
    x = 2,961.20

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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.