Home / 2,276.40-3,411.40-1,686.80

Finding the Fourth Proportional to 2,276.40, 3,411.40 and 1,686.80

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Solution

The fourth proportional to 2,276.40, 3,411.40 and 1,686.80 is: 2,527.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.40 : 3,411.40 = 1,686.80 : x
  2. Step 2: Convert to fraction form
    2,276.40/3,411.40 = 1,686.80/x
  3. Step 3: Cross multiply
    2,276.40x = 3,411.40 × 1,686.80
  4. Step 4: Simplify right side
    2,276.40x = 5,754,349.52
  5. Step 5: Solve for x
    x = 5,754,349.52/2,276.40
  6. Step 6: Final answer
    x = 2,527.83

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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.