Home / 2,690.15-3,711.99-1,510.98

Finding the Fourth Proportional to 2,690.15, 3,711.99 and 1,510.98

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Solution

The fourth proportional to 2,690.15, 3,711.99 and 1,510.98 is: 2,084.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.15 : 3,711.99 = 1,510.98 : x
  2. Step 2: Convert to fraction form
    2,690.15/3,711.99 = 1,510.98/x
  3. Step 3: Cross multiply
    2,690.15x = 3,711.99 × 1,510.98
  4. Step 4: Simplify right side
    2,690.15x = 5,608,742.65
  5. Step 5: Solve for x
    x = 5,608,742.65/2,690.15
  6. Step 6: Final answer
    x = 2,084.92

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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.