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Finding the Fourth Proportional to 2,169.02, 2,992.12 and 1,506.44

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Solution

The fourth proportional to 2,169.02, 2,992.12 and 1,506.44 is: 2,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.02 : 2,992.12 = 1,506.44 : x
  2. Step 2: Convert to fraction form
    2,169.02/2,992.12 = 1,506.44/x
  3. Step 3: Cross multiply
    2,169.02x = 2,992.12 × 1,506.44
  4. Step 4: Simplify right side
    2,169.02x = 4,507,430.53
  5. Step 5: Solve for x
    x = 4,507,430.53/2,169.02
  6. Step 6: Final answer
    x = 2,078.10

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1.5x scale

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.