Home / 1,898.24-2,618.40-1,112

Finding the Fourth Proportional to 1,898.24, 2,618.40 and 1,112

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Solution

The fourth proportional to 1,898.24, 2,618.40 and 1,112 is: 1,533.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.24 : 2,618.40 = 1,112 : x
  2. Step 2: Convert to fraction form
    1,898.24/2,618.40 = 1,112/x
  3. Step 3: Cross multiply
    1,898.24x = 2,618.40 × 1,112
  4. Step 4: Simplify right side
    1,898.24x = 2,911,660.80
  5. Step 5: Solve for x
    x = 2,911,660.80/1,898.24
  6. Step 6: Final answer
    x = 1,533.87

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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.