Home / 3,116.95-4,301.37-1,790.66

Finding the Fourth Proportional to 3,116.95, 4,301.37 and 1,790.66

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Solution

The fourth proportional to 3,116.95, 4,301.37 and 1,790.66 is: 2,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.95 : 4,301.37 = 1,790.66 : x
  2. Step 2: Convert to fraction form
    3,116.95/4,301.37 = 1,790.66/x
  3. Step 3: Cross multiply
    3,116.95x = 4,301.37 × 1,790.66
  4. Step 4: Simplify right side
    3,116.95x = 7,702,291.20
  5. Step 5: Solve for x
    x = 7,702,291.20/3,116.95
  6. Step 6: Final answer
    x = 2,471.10

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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.