Home / 2,690.12-3,711.95-1,510.96

Finding the Fourth Proportional to 2,690.12, 3,711.95 and 1,510.96

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Solution

The fourth proportional to 2,690.12, 3,711.95 and 1,510.96 is: 2,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.12 : 3,711.95 = 1,510.96 : x
  2. Step 2: Convert to fraction form
    2,690.12/3,711.95 = 1,510.96/x
  3. Step 3: Cross multiply
    2,690.12x = 3,711.95 × 1,510.96
  4. Step 4: Simplify right side
    2,690.12x = 5,608,607.97
  5. Step 5: Solve for x
    x = 5,608,607.97/2,690.12
  6. Step 6: Final answer
    x = 2,084.89

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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.