Home / 2,689.44-3,711.56-1,510.60

Finding the Fourth Proportional to 2,689.44, 3,711.56 and 1,510.60

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Solution

The fourth proportional to 2,689.44, 3,711.56 and 1,510.60 is: 2,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.44 : 3,711.56 = 1,510.60 : x
  2. Step 2: Convert to fraction form
    2,689.44/3,711.56 = 1,510.60/x
  3. Step 3: Cross multiply
    2,689.44x = 3,711.56 × 1,510.60
  4. Step 4: Simplify right side
    2,689.44x = 5,606,682.54
  5. Step 5: Solve for x
    x = 5,606,682.54/2,689.44
  6. Step 6: Final answer
    x = 2,084.70

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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.