Home / 3,640.89-5,025-2,225.39

Finding the Fourth Proportional to 3,640.89, 5,025 and 2,225.39

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Solution

The fourth proportional to 3,640.89, 5,025 and 2,225.39 is: 3,071.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.89 : 5,025 = 2,225.39 : x
  2. Step 2: Convert to fraction form
    3,640.89/5,025 = 2,225.39/x
  3. Step 3: Cross multiply
    3,640.89x = 5,025 × 2,225.39
  4. Step 4: Simplify right side
    3,640.89x = 11,182,597.31
  5. Step 5: Solve for x
    x = 11,182,597.31/3,640.89
  6. Step 6: Final answer
    x = 3,071.39

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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.