Home / 5,112.48-7,067.80-5,065.70

Finding the Fourth Proportional to 5,112.48, 7,067.80 and 5,065.70

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Solution

The fourth proportional to 5,112.48, 7,067.80 and 5,065.70 is: 7,003.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.48 : 7,067.80 = 5,065.70 : x
  2. Step 2: Convert to fraction form
    5,112.48/7,067.80 = 5,065.70/x
  3. Step 3: Cross multiply
    5,112.48x = 7,067.80 × 5,065.70
  4. Step 4: Simplify right side
    5,112.48x = 35,803,359.47
  5. Step 5: Solve for x
    x = 35,803,359.47/5,112.48
  6. Step 6: Final answer
    x = 7,003.13

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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.