Home / 7,279.10-10,045.31-4,135.22

Finding the Fourth Proportional to 7,279.10, 10,045.31 and 4,135.22

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Solution

The fourth proportional to 7,279.10, 10,045.31 and 4,135.22 is: 5,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.10 : 10,045.31 = 4,135.22 : x
  2. Step 2: Convert to fraction form
    7,279.10/10,045.31 = 4,135.22/x
  3. Step 3: Cross multiply
    7,279.10x = 10,045.31 × 4,135.22
  4. Step 4: Simplify right side
    7,279.10x = 41,539,566.82
  5. Step 5: Solve for x
    x = 41,539,566.82/7,279.10
  6. Step 6: Final answer
    x = 5,706.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.