Home / 3,197.19-4,412.42-1,870.81

Finding the Fourth Proportional to 3,197.19, 4,412.42 and 1,870.81

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Solution

The fourth proportional to 3,197.19, 4,412.42 and 1,870.81 is: 2,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.19 : 4,412.42 = 1,870.81 : x
  2. Step 2: Convert to fraction form
    3,197.19/4,412.42 = 1,870.81/x
  3. Step 3: Cross multiply
    3,197.19x = 4,412.42 × 1,870.81
  4. Step 4: Simplify right side
    3,197.19x = 8,254,799.46
  5. Step 5: Solve for x
    x = 8,254,799.46/3,197.19
  6. Step 6: Final answer
    x = 2,581.89

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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.