Home / 1,868.10-2,799.08-1,135.47

Finding the Fourth Proportional to 1,868.10, 2,799.08 and 1,135.47

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Solution

The fourth proportional to 1,868.10, 2,799.08 and 1,135.47 is: 1,701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.10 : 2,799.08 = 1,135.47 : x
  2. Step 2: Convert to fraction form
    1,868.10/2,799.08 = 1,135.47/x
  3. Step 3: Cross multiply
    1,868.10x = 2,799.08 × 1,135.47
  4. Step 4: Simplify right side
    1,868.10x = 3,178,265.69
  5. Step 5: Solve for x
    x = 3,178,265.69/1,868.10
  6. Step 6: Final answer
    x = 1,701.34

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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.