Home / 1,625.40-2,436.30-845.10

Finding the Fourth Proportional to 1,625.40, 2,436.30 and 845.10

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Solution

The fourth proportional to 1,625.40, 2,436.30 and 845.10 is: 1,266.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.40 : 2,436.30 = 845.10 : x
  2. Step 2: Convert to fraction form
    1,625.40/2,436.30 = 845.10/x
  3. Step 3: Cross multiply
    1,625.40x = 2,436.30 × 845.10
  4. Step 4: Simplify right side
    1,625.40x = 2,058,917.13
  5. Step 5: Solve for x
    x = 2,058,917.13/1,625.40
  6. Step 6: Final answer
    x = 1,266.71

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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.