Home / 2,874.81-3,964.47-1,740.25

Finding the Fourth Proportional to 2,874.81, 3,964.47 and 1,740.25

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Solution

The fourth proportional to 2,874.81, 3,964.47 and 1,740.25 is: 2,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.81 : 3,964.47 = 1,740.25 : x
  2. Step 2: Convert to fraction form
    2,874.81/3,964.47 = 1,740.25/x
  3. Step 3: Cross multiply
    2,874.81x = 3,964.47 × 1,740.25
  4. Step 4: Simplify right side
    2,874.81x = 6,899,168.92
  5. Step 5: Solve for x
    x = 6,899,168.92/2,874.81
  6. Step 6: Final answer
    x = 2,399.87

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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.