Home / 1,358.91-2,026.45-1,283.88

Finding the Fourth Proportional to 1,358.91, 2,026.45 and 1,283.88

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Solution

The fourth proportional to 1,358.91, 2,026.45 and 1,283.88 is: 1,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.91 : 2,026.45 = 1,283.88 : x
  2. Step 2: Convert to fraction form
    1,358.91/2,026.45 = 1,283.88/x
  3. Step 3: Cross multiply
    1,358.91x = 2,026.45 × 1,283.88
  4. Step 4: Simplify right side
    1,358.91x = 2,601,727.83
  5. Step 5: Solve for x
    x = 2,601,727.83/1,358.91
  6. Step 6: Final answer
    x = 1,914.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.