Home / 1,284.01-1,926.88-553.66

Finding the Fourth Proportional to 1,284.01, 1,926.88 and 553.66

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Solution

The fourth proportional to 1,284.01, 1,926.88 and 553.66 is: 830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.01 : 1,926.88 = 553.66 : x
  2. Step 2: Convert to fraction form
    1,284.01/1,926.88 = 553.66/x
  3. Step 3: Cross multiply
    1,284.01x = 1,926.88 × 553.66
  4. Step 4: Simplify right side
    1,284.01x = 1,066,830.18
  5. Step 5: Solve for x
    x = 1,066,830.18/1,284.01
  6. Step 6: Final answer
    x = 830.86

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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.