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Finding the Fourth Proportional to 1,624.70, 2,242.06 and 926.06

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Solution

The fourth proportional to 1,624.70, 2,242.06 and 926.06 is: 1,277.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.70 : 2,242.06 = 926.06 : x
  2. Step 2: Convert to fraction form
    1,624.70/2,242.06 = 926.06/x
  3. Step 3: Cross multiply
    1,624.70x = 2,242.06 × 926.06
  4. Step 4: Simplify right side
    1,624.70x = 2,076,282.08
  5. Step 5: Solve for x
    x = 2,076,282.08/1,624.70
  6. Step 6: Final answer
    x = 1,277.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.