Home / 2,591.13-3,574.45-1,961.76

Finding the Fourth Proportional to 2,591.13, 3,574.45 and 1,961.76

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Solution

The fourth proportional to 2,591.13, 3,574.45 and 1,961.76 is: 2,706.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.13 : 3,574.45 = 1,961.76 : x
  2. Step 2: Convert to fraction form
    2,591.13/3,574.45 = 1,961.76/x
  3. Step 3: Cross multiply
    2,591.13x = 3,574.45 × 1,961.76
  4. Step 4: Simplify right side
    2,591.13x = 7,012,203.22
  5. Step 5: Solve for x
    x = 7,012,203.22/2,591.13
  6. Step 6: Final answer
    x = 2,706.23

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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.