Home / 5,918.15-8,166.73-3,398.51

Finding the Fourth Proportional to 5,918.15, 8,166.73 and 3,398.51

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Solution

The fourth proportional to 5,918.15, 8,166.73 and 3,398.51 is: 4,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.15 : 8,166.73 = 3,398.51 : x
  2. Step 2: Convert to fraction form
    5,918.15/8,166.73 = 3,398.51/x
  3. Step 3: Cross multiply
    5,918.15x = 8,166.73 × 3,398.51
  4. Step 4: Simplify right side
    5,918.15x = 27,754,713.57
  5. Step 5: Solve for x
    x = 27,754,713.57/5,918.15
  6. Step 6: Final answer
    x = 4,689.76

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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.