Home / 1,625.28-2,426.70-1,393.80

Finding the Fourth Proportional to 1,625.28, 2,426.70 and 1,393.80

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Solution

The fourth proportional to 1,625.28, 2,426.70 and 1,393.80 is: 2,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.28 : 2,426.70 = 1,393.80 : x
  2. Step 2: Convert to fraction form
    1,625.28/2,426.70 = 1,393.80/x
  3. Step 3: Cross multiply
    1,625.28x = 2,426.70 × 1,393.80
  4. Step 4: Simplify right side
    1,625.28x = 3,382,334.46
  5. Step 5: Solve for x
    x = 3,382,334.46/1,625.28
  6. Step 6: Final answer
    x = 2,081.08

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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.