Home / 1,869.52-2,805.62-1,254.40

Finding the Fourth Proportional to 1,869.52, 2,805.62 and 1,254.40

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Solution

The fourth proportional to 1,869.52, 2,805.62 and 1,254.40 is: 1,882.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.52 : 2,805.62 = 1,254.40 : x
  2. Step 2: Convert to fraction form
    1,869.52/2,805.62 = 1,254.40/x
  3. Step 3: Cross multiply
    1,869.52x = 2,805.62 × 1,254.40
  4. Step 4: Simplify right side
    1,869.52x = 3,519,369.73
  5. Step 5: Solve for x
    x = 3,519,369.73/1,869.52
  6. Step 6: Final answer
    x = 1,882.50

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1.5x scale

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.