Home / 3,155.68-4,353.96-1,829.12

Finding the Fourth Proportional to 3,155.68, 4,353.96 and 1,829.12

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Solution

The fourth proportional to 3,155.68, 4,353.96 and 1,829.12 is: 2,523.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.68 : 4,353.96 = 1,829.12 : x
  2. Step 2: Convert to fraction form
    3,155.68/4,353.96 = 1,829.12/x
  3. Step 3: Cross multiply
    3,155.68x = 4,353.96 × 1,829.12
  4. Step 4: Simplify right side
    3,155.68x = 7,963,915.32
  5. Step 5: Solve for x
    x = 7,963,915.32/3,155.68
  6. Step 6: Final answer
    x = 2,523.68

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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.