Home / 3,151.74-4,349.43-1,754.49

Finding the Fourth Proportional to 3,151.74, 4,349.43 and 1,754.49

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Solution

The fourth proportional to 3,151.74, 4,349.43 and 1,754.49 is: 2,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.74 : 4,349.43 = 1,754.49 : x
  2. Step 2: Convert to fraction form
    3,151.74/4,349.43 = 1,754.49/x
  3. Step 3: Cross multiply
    3,151.74x = 4,349.43 × 1,754.49
  4. Step 4: Simplify right side
    3,151.74x = 7,631,031.44
  5. Step 5: Solve for x
    x = 7,631,031.44/3,151.74
  6. Step 6: Final answer
    x = 2,421.21

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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.