Home / 1,901.54-2,853.14-669.84

Finding the Fourth Proportional to 1,901.54, 2,853.14 and 669.84

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Solution

The fourth proportional to 1,901.54, 2,853.14 and 669.84 is: 1,005.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.54 : 2,853.14 = 669.84 : x
  2. Step 2: Convert to fraction form
    1,901.54/2,853.14 = 669.84/x
  3. Step 3: Cross multiply
    1,901.54x = 2,853.14 × 669.84
  4. Step 4: Simplify right side
    1,901.54x = 1,911,143.95
  5. Step 5: Solve for x
    x = 1,911,143.95/1,901.54
  6. Step 6: Final answer
    x = 1,005.05

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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.