Home / 1,351.07-2,026.75-426.76

Finding the Fourth Proportional to 1,351.07, 2,026.75 and 426.76

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Solution

The fourth proportional to 1,351.07, 2,026.75 and 426.76 is: 640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.07 : 2,026.75 = 426.76 : x
  2. Step 2: Convert to fraction form
    1,351.07/2,026.75 = 426.76/x
  3. Step 3: Cross multiply
    1,351.07x = 2,026.75 × 426.76
  4. Step 4: Simplify right side
    1,351.07x = 864,935.83
  5. Step 5: Solve for x
    x = 864,935.83/1,351.07
  6. Step 6: Final answer
    x = 640.19

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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.