Home / 7,161.38-10,739.48-2,480.10

Finding the Fourth Proportional to 7,161.38, 10,739.48 and 2,480.10

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Solution

The fourth proportional to 7,161.38, 10,739.48 and 2,480.10 is: 3,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.38 : 10,739.48 = 2,480.10 : x
  2. Step 2: Convert to fraction form
    7,161.38/10,739.48 = 2,480.10/x
  3. Step 3: Cross multiply
    7,161.38x = 10,739.48 × 2,480.10
  4. Step 4: Simplify right side
    7,161.38x = 26,634,971.95
  5. Step 5: Solve for x
    x = 26,634,971.95/7,161.38
  6. Step 6: Final answer
    x = 3,719.25

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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.