Home / 2,317.78-3,197.23-1,432.09

Finding the Fourth Proportional to 2,317.78, 3,197.23 and 1,432.09

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Solution

The fourth proportional to 2,317.78, 3,197.23 and 1,432.09 is: 1,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.78 : 3,197.23 = 1,432.09 : x
  2. Step 2: Convert to fraction form
    2,317.78/3,197.23 = 1,432.09/x
  3. Step 3: Cross multiply
    2,317.78x = 3,197.23 × 1,432.09
  4. Step 4: Simplify right side
    2,317.78x = 4,578,721.11
  5. Step 5: Solve for x
    x = 4,578,721.11/2,317.78
  6. Step 6: Final answer
    x = 1,975.48

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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.