Home / 2,181.17-3,009.02-1,296.47

Finding the Fourth Proportional to 2,181.17, 3,009.02 and 1,296.47

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Solution

The fourth proportional to 2,181.17, 3,009.02 and 1,296.47 is: 1,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.17 : 3,009.02 = 1,296.47 : x
  2. Step 2: Convert to fraction form
    2,181.17/3,009.02 = 1,296.47/x
  3. Step 3: Cross multiply
    2,181.17x = 3,009.02 × 1,296.47
  4. Step 4: Simplify right side
    2,181.17x = 3,901,082.63
  5. Step 5: Solve for x
    x = 3,901,082.63/2,181.17
  6. Step 6: Final answer
    x = 1,788.53

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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.