Home / 1,298.28-1,943.64-1,008.84

Finding the Fourth Proportional to 1,298.28, 1,943.64 and 1,008.84

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Solution

The fourth proportional to 1,298.28, 1,943.64 and 1,008.84 is: 1,510.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.28 : 1,943.64 = 1,008.84 : x
  2. Step 2: Convert to fraction form
    1,298.28/1,943.64 = 1,008.84/x
  3. Step 3: Cross multiply
    1,298.28x = 1,943.64 × 1,008.84
  4. Step 4: Simplify right side
    1,298.28x = 1,960,821.78
  5. Step 5: Solve for x
    x = 1,960,821.78/1,298.28
  6. Step 6: Final answer
    x = 1,510.32

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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.