Home / 2,810.80-4,217.40-1,510.76

Finding the Fourth Proportional to 2,810.80, 4,217.40 and 1,510.76

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Solution

The fourth proportional to 2,810.80, 4,217.40 and 1,510.76 is: 2,266.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.80 : 4,217.40 = 1,510.76 : x
  2. Step 2: Convert to fraction form
    2,810.80/4,217.40 = 1,510.76/x
  3. Step 3: Cross multiply
    2,810.80x = 4,217.40 × 1,510.76
  4. Step 4: Simplify right side
    2,810.80x = 6,371,479.22
  5. Step 5: Solve for x
    x = 6,371,479.22/2,810.80
  6. Step 6: Final answer
    x = 2,266.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.