Home / 3,085.40-4,625.40-1,853.30

Finding the Fourth Proportional to 3,085.40, 4,625.40 and 1,853.30

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Solution

The fourth proportional to 3,085.40, 4,625.40 and 1,853.30 is: 2,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.40 : 4,625.40 = 1,853.30 : x
  2. Step 2: Convert to fraction form
    3,085.40/4,625.40 = 1,853.30/x
  3. Step 3: Cross multiply
    3,085.40x = 4,625.40 × 1,853.30
  4. Step 4: Simplify right side
    3,085.40x = 8,572,253.82
  5. Step 5: Solve for x
    x = 8,572,253.82/3,085.40
  6. Step 6: Final answer
    x = 2,778.33

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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.