Home / 3,197.36-4,412.16-1,871

Finding the Fourth Proportional to 3,197.36, 4,412.16 and 1,871

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Solution

The fourth proportional to 3,197.36, 4,412.16 and 1,871 is: 2,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.36 : 4,412.16 = 1,871 : x
  2. Step 2: Convert to fraction form
    3,197.36/4,412.16 = 1,871/x
  3. Step 3: Cross multiply
    3,197.36x = 4,412.16 × 1,871
  4. Step 4: Simplify right side
    3,197.36x = 8,255,151.36
  5. Step 5: Solve for x
    x = 8,255,151.36/3,197.36
  6. Step 6: Final answer
    x = 2,581.86

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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.