Home / 1,284.88-1,926.18-554.56

Finding the Fourth Proportional to 1,284.88, 1,926.18 and 554.56

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Solution

The fourth proportional to 1,284.88, 1,926.18 and 554.56 is: 831.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.88 : 1,926.18 = 554.56 : x
  2. Step 2: Convert to fraction form
    1,284.88/1,926.18 = 554.56/x
  3. Step 3: Cross multiply
    1,284.88x = 1,926.18 × 554.56
  4. Step 4: Simplify right side
    1,284.88x = 1,068,182.38
  5. Step 5: Solve for x
    x = 1,068,182.38/1,284.88
  6. Step 6: Final answer
    x = 831.35

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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.