Home / 3,603.60-5,405.40-2,225.70

Finding the Fourth Proportional to 3,603.60, 5,405.40 and 2,225.70

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Solution

The fourth proportional to 3,603.60, 5,405.40 and 2,225.70 is: 3,338.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.60 : 5,405.40 = 2,225.70 : x
  2. Step 2: Convert to fraction form
    3,603.60/5,405.40 = 2,225.70/x
  3. Step 3: Cross multiply
    3,603.60x = 5,405.40 × 2,225.70
  4. Step 4: Simplify right side
    3,603.60x = 12,030,798.78
  5. Step 5: Solve for x
    x = 12,030,798.78/3,603.60
  6. Step 6: Final answer
    x = 3,338.55

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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.