Home / 2,260.71-3,120.75-1,376.82

Finding the Fourth Proportional to 2,260.71, 3,120.75 and 1,376.82

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Solution

The fourth proportional to 2,260.71, 3,120.75 and 1,376.82 is: 1,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.71 : 3,120.75 = 1,376.82 : x
  2. Step 2: Convert to fraction form
    2,260.71/3,120.75 = 1,376.82/x
  3. Step 3: Cross multiply
    2,260.71x = 3,120.75 × 1,376.82
  4. Step 4: Simplify right side
    2,260.71x = 4,296,711.02
  5. Step 5: Solve for x
    x = 4,296,711.02/2,260.71
  6. Step 6: Final answer
    x = 1,900.60

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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.