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Finding the Fourth Proportional to 2,669.04, 4,000.92 and 936.42

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Solution

The fourth proportional to 2,669.04, 4,000.92 and 936.42 is: 1,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.04 : 4,000.92 = 936.42 : x
  2. Step 2: Convert to fraction form
    2,669.04/4,000.92 = 936.42/x
  3. Step 3: Cross multiply
    2,669.04x = 4,000.92 × 936.42
  4. Step 4: Simplify right side
    2,669.04x = 3,746,541.51
  5. Step 5: Solve for x
    x = 3,746,541.51/2,669.04
  6. Step 6: Final answer
    x = 1,403.70

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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.