Home / 7,319.80-10,101.38-4,089.62

Finding the Fourth Proportional to 7,319.80, 10,101.38 and 4,089.62

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Solution

The fourth proportional to 7,319.80, 10,101.38 and 4,089.62 is: 5,643.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.80 : 10,101.38 = 4,089.62 : x
  2. Step 2: Convert to fraction form
    7,319.80/10,101.38 = 4,089.62/x
  3. Step 3: Cross multiply
    7,319.80x = 10,101.38 × 4,089.62
  4. Step 4: Simplify right side
    7,319.80x = 41,310,810.48
  5. Step 5: Solve for x
    x = 41,310,810.48/7,319.80
  6. Step 6: Final answer
    x = 5,643.71

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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.