Home / 2,689.23-3,711.11-1,510.50

Finding the Fourth Proportional to 2,689.23, 3,711.11 and 1,510.50

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Solution

The fourth proportional to 2,689.23, 3,711.11 and 1,510.50 is: 2,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.23 : 3,711.11 = 1,510.50 : x
  2. Step 2: Convert to fraction form
    2,689.23/3,711.11 = 1,510.50/x
  3. Step 3: Cross multiply
    2,689.23x = 3,711.11 × 1,510.50
  4. Step 4: Simplify right side
    2,689.23x = 5,605,624.10
  5. Step 5: Solve for x
    x = 5,605,624.10/2,689.23
  6. Step 6: Final answer
    x = 2,084.47

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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.