Home / 2,325.22-3,207.72-1,440.70

Finding the Fourth Proportional to 2,325.22, 3,207.72 and 1,440.70

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Solution

The fourth proportional to 2,325.22, 3,207.72 and 1,440.70 is: 1,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.22 : 3,207.72 = 1,440.70 : x
  2. Step 2: Convert to fraction form
    2,325.22/3,207.72 = 1,440.70/x
  3. Step 3: Cross multiply
    2,325.22x = 3,207.72 × 1,440.70
  4. Step 4: Simplify right side
    2,325.22x = 4,621,362.20
  5. Step 5: Solve for x
    x = 4,621,362.20/2,325.22
  6. Step 6: Final answer
    x = 1,987.49

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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.