Home / 2,516.88-3,473.28-1,397.68

Finding the Fourth Proportional to 2,516.88, 3,473.28 and 1,397.68

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Solution

The fourth proportional to 2,516.88, 3,473.28 and 1,397.68 is: 1,928.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.88 : 3,473.28 = 1,397.68 : x
  2. Step 2: Convert to fraction form
    2,516.88/3,473.28 = 1,397.68/x
  3. Step 3: Cross multiply
    2,516.88x = 3,473.28 × 1,397.68
  4. Step 4: Simplify right side
    2,516.88x = 4,854,533.99
  5. Step 5: Solve for x
    x = 4,854,533.99/2,516.88
  6. Step 6: Final answer
    x = 1,928.79

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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.