Home / 3,250.40-4,485.60-1,853.12

Finding the Fourth Proportional to 3,250.40, 4,485.60 and 1,853.12

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Solution

The fourth proportional to 3,250.40, 4,485.60 and 1,853.12 is: 2,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,250.40 : 4,485.60 = 1,853.12 : x
  2. Step 2: Convert to fraction form
    3,250.40/4,485.60 = 1,853.12/x
  3. Step 3: Cross multiply
    3,250.40x = 4,485.60 × 1,853.12
  4. Step 4: Simplify right side
    3,250.40x = 8,312,355.07
  5. Step 5: Solve for x
    x = 8,312,355.07/3,250.40
  6. Step 6: Final answer
    x = 2,557.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.