Home / 2,290.40-3,432.46-1,509.22

Finding the Fourth Proportional to 2,290.40, 3,432.46 and 1,509.22

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Solution

The fourth proportional to 2,290.40, 3,432.46 and 1,509.22 is: 2,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.40 : 3,432.46 = 1,509.22 : x
  2. Step 2: Convert to fraction form
    2,290.40/3,432.46 = 1,509.22/x
  3. Step 3: Cross multiply
    2,290.40x = 3,432.46 × 1,509.22
  4. Step 4: Simplify right side
    2,290.40x = 5,180,337.28
  5. Step 5: Solve for x
    x = 5,180,337.28/2,290.40
  6. Step 6: Final answer
    x = 2,261.76

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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.