Home / 3,116.56-4,300.95-1,790.70

Finding the Fourth Proportional to 3,116.56, 4,300.95 and 1,790.70

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Solution

The fourth proportional to 3,116.56, 4,300.95 and 1,790.70 is: 2,471.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.56 : 4,300.95 = 1,790.70 : x
  2. Step 2: Convert to fraction form
    3,116.56/4,300.95 = 1,790.70/x
  3. Step 3: Cross multiply
    3,116.56x = 4,300.95 × 1,790.70
  4. Step 4: Simplify right side
    3,116.56x = 7,701,711.17
  5. Step 5: Solve for x
    x = 7,701,711.17/3,116.56
  6. Step 6: Final answer
    x = 2,471.22

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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.