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Finding the Fourth Proportional to 2,246.80, 3,368.89 and 860.23

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Solution

The fourth proportional to 2,246.80, 3,368.89 and 860.23 is: 1,289.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,246.80 : 3,368.89 = 860.23 : x
  2. Step 2: Convert to fraction form
    2,246.80/3,368.89 = 860.23/x
  3. Step 3: Cross multiply
    2,246.80x = 3,368.89 × 860.23
  4. Step 4: Simplify right side
    2,246.80x = 2,898,020.24
  5. Step 5: Solve for x
    x = 2,898,020.24/2,246.80
  6. Step 6: Final answer
    x = 1,289.84

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1.5x scale

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.