Home / 2,518.81-3,476.11-1,399.75

Finding the Fourth Proportional to 2,518.81, 3,476.11 and 1,399.75

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Solution

The fourth proportional to 2,518.81, 3,476.11 and 1,399.75 is: 1,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.81 : 3,476.11 = 1,399.75 : x
  2. Step 2: Convert to fraction form
    2,518.81/3,476.11 = 1,399.75/x
  3. Step 3: Cross multiply
    2,518.81x = 3,476.11 × 1,399.75
  4. Step 4: Simplify right side
    2,518.81x = 4,865,677.97
  5. Step 5: Solve for x
    x = 4,865,677.97/2,518.81
  6. Step 6: Final answer
    x = 1,931.74

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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.