Home / 2,166.69-3,250.02-1,387.08

Finding the Fourth Proportional to 2,166.69, 3,250.02 and 1,387.08

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Solution

The fourth proportional to 2,166.69, 3,250.02 and 1,387.08 is: 2,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.69 : 3,250.02 = 1,387.08 : x
  2. Step 2: Convert to fraction form
    2,166.69/3,250.02 = 1,387.08/x
  3. Step 3: Cross multiply
    2,166.69x = 3,250.02 × 1,387.08
  4. Step 4: Simplify right side
    2,166.69x = 4,508,037.74
  5. Step 5: Solve for x
    x = 4,508,037.74/2,166.69
  6. Step 6: Final answer
    x = 2,080.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.