Home / 3,197.91-4,412.43-1,871.40

Finding the Fourth Proportional to 3,197.91, 4,412.43 and 1,871.40

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Solution

The fourth proportional to 3,197.91, 4,412.43 and 1,871.40 is: 2,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.91 : 4,412.43 = 1,871.40 : x
  2. Step 2: Convert to fraction form
    3,197.91/4,412.43 = 1,871.40/x
  3. Step 3: Cross multiply
    3,197.91x = 4,412.43 × 1,871.40
  4. Step 4: Simplify right side
    3,197.91x = 8,257,421.50
  5. Step 5: Solve for x
    x = 8,257,421.50/3,197.91
  6. Step 6: Final answer
    x = 2,582.13

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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.