Home / 2,148.12-2,961.27-1,516.68

Finding the Fourth Proportional to 2,148.12, 2,961.27 and 1,516.68

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Solution

The fourth proportional to 2,148.12, 2,961.27 and 1,516.68 is: 2,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.12 : 2,961.27 = 1,516.68 : x
  2. Step 2: Convert to fraction form
    2,148.12/2,961.27 = 1,516.68/x
  3. Step 3: Cross multiply
    2,148.12x = 2,961.27 × 1,516.68
  4. Step 4: Simplify right side
    2,148.12x = 4,491,298.98
  5. Step 5: Solve for x
    x = 4,491,298.98/2,148.12
  6. Step 6: Final answer
    x = 2,090.80

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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.