Home / 2,295.20-3,445.36-1,140.64

Finding the Fourth Proportional to 2,295.20, 3,445.36 and 1,140.64

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Solution

The fourth proportional to 2,295.20, 3,445.36 and 1,140.64 is: 1,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,295.20 : 3,445.36 = 1,140.64 : x
  2. Step 2: Convert to fraction form
    2,295.20/3,445.36 = 1,140.64/x
  3. Step 3: Cross multiply
    2,295.20x = 3,445.36 × 1,140.64
  4. Step 4: Simplify right side
    2,295.20x = 3,929,915.43
  5. Step 5: Solve for x
    x = 3,929,915.43/2,295.20
  6. Step 6: Final answer
    x = 1,712.23

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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.