Home / 1,459.28-2,179.30-1,298

Finding the Fourth Proportional to 1,459.28, 2,179.30 and 1,298

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Solution

The fourth proportional to 1,459.28, 2,179.30 and 1,298 is: 1,938.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.28 : 2,179.30 = 1,298 : x
  2. Step 2: Convert to fraction form
    1,459.28/2,179.30 = 1,298/x
  3. Step 3: Cross multiply
    1,459.28x = 2,179.30 × 1,298
  4. Step 4: Simplify right side
    1,459.28x = 2,828,731.40
  5. Step 5: Solve for x
    x = 2,828,731.40/1,459.28
  6. Step 6: Final answer
    x = 1,938.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.