Home / 1,818.28-2,509.68-1,119.25

Finding the Fourth Proportional to 1,818.28, 2,509.68 and 1,119.25

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Solution

The fourth proportional to 1,818.28, 2,509.68 and 1,119.25 is: 1,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.28 : 2,509.68 = 1,119.25 : x
  2. Step 2: Convert to fraction form
    1,818.28/2,509.68 = 1,119.25/x
  3. Step 3: Cross multiply
    1,818.28x = 2,509.68 × 1,119.25
  4. Step 4: Simplify right side
    1,818.28x = 2,808,959.34
  5. Step 5: Solve for x
    x = 2,808,959.34/1,818.28
  6. Step 6: Final answer
    x = 1,544.84

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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.