Home / 5,117.76-7,062.12-3,021.48

Finding the Fourth Proportional to 5,117.76, 7,062.12 and 3,021.48

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Solution

The fourth proportional to 5,117.76, 7,062.12 and 3,021.48 is: 4,169.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.76 : 7,062.12 = 3,021.48 : x
  2. Step 2: Convert to fraction form
    5,117.76/7,062.12 = 3,021.48/x
  3. Step 3: Cross multiply
    5,117.76x = 7,062.12 × 3,021.48
  4. Step 4: Simplify right side
    5,117.76x = 21,338,054.34
  5. Step 5: Solve for x
    x = 21,338,054.34/5,117.76
  6. Step 6: Final answer
    x = 4,169.41

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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.