Home / 1,054.45-1,581.66-284.95

Finding the Fourth Proportional to 1,054.45, 1,581.66 and 284.95

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Solution

The fourth proportional to 1,054.45, 1,581.66 and 284.95 is: 427.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.45 : 1,581.66 = 284.95 : x
  2. Step 2: Convert to fraction form
    1,054.45/1,581.66 = 284.95/x
  3. Step 3: Cross multiply
    1,054.45x = 1,581.66 × 284.95
  4. Step 4: Simplify right side
    1,054.45x = 450,694.02
  5. Step 5: Solve for x
    x = 450,694.02/1,054.45
  6. Step 6: Final answer
    x = 427.42

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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.