Home / 5,117.77-7,062.47-2,879.65

Finding the Fourth Proportional to 5,117.77, 7,062.47 and 2,879.65

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Solution

The fourth proportional to 5,117.77, 7,062.47 and 2,879.65 is: 3,973.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.77 : 7,062.47 = 2,879.65 : x
  2. Step 2: Convert to fraction form
    5,117.77/7,062.47 = 2,879.65/x
  3. Step 3: Cross multiply
    5,117.77x = 7,062.47 × 2,879.65
  4. Step 4: Simplify right side
    5,117.77x = 20,337,427.34
  5. Step 5: Solve for x
    x = 20,337,427.34/5,117.77
  6. Step 6: Final answer
    x = 3,973.88

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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.