Home / 3,151.90-4,349.55-1,973.62

Finding the Fourth Proportional to 3,151.90, 4,349.55 and 1,973.62

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Solution

The fourth proportional to 3,151.90, 4,349.55 and 1,973.62 is: 2,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.90 : 4,349.55 = 1,973.62 : x
  2. Step 2: Convert to fraction form
    3,151.90/4,349.55 = 1,973.62/x
  3. Step 3: Cross multiply
    3,151.90x = 4,349.55 × 1,973.62
  4. Step 4: Simplify right side
    3,151.90x = 8,584,358.87
  5. Step 5: Solve for x
    x = 8,584,358.87/3,151.90
  6. Step 6: Final answer
    x = 2,723.55

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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.