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Finding the Fourth Proportional to 2,842.40, 4,263.40 and 894.52

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Solution

The fourth proportional to 2,842.40, 4,263.40 and 894.52 is: 1,341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.40 : 4,263.40 = 894.52 : x
  2. Step 2: Convert to fraction form
    2,842.40/4,263.40 = 894.52/x
  3. Step 3: Cross multiply
    2,842.40x = 4,263.40 × 894.52
  4. Step 4: Simplify right side
    2,842.40x = 3,813,696.57
  5. Step 5: Solve for x
    x = 3,813,696.57/2,842.40
  6. Step 6: Final answer
    x = 1,341.72

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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.