Home / 2,276.51-3,143.51-1,392.59

Finding the Fourth Proportional to 2,276.51, 3,143.51 and 1,392.59

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Solution

The fourth proportional to 2,276.51, 3,143.51 and 1,392.59 is: 1,922.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.51 : 3,143.51 = 1,392.59 : x
  2. Step 2: Convert to fraction form
    2,276.51/3,143.51 = 1,392.59/x
  3. Step 3: Cross multiply
    2,276.51x = 3,143.51 × 1,392.59
  4. Step 4: Simplify right side
    2,276.51x = 4,377,626.71
  5. Step 5: Solve for x
    x = 4,377,626.71/2,276.51
  6. Step 6: Final answer
    x = 1,922.96

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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.