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Finding the Fourth Proportional to 2,297.42, 3,169 and 1,913.16

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Solution

The fourth proportional to 2,297.42, 3,169 and 1,913.16 is: 2,638.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,297.42 : 3,169 = 1,913.16 : x
  2. Step 2: Convert to fraction form
    2,297.42/3,169 = 1,913.16/x
  3. Step 3: Cross multiply
    2,297.42x = 3,169 × 1,913.16
  4. Step 4: Simplify right side
    2,297.42x = 6,062,804.04
  5. Step 5: Solve for x
    x = 6,062,804.04/2,297.42
  6. Step 6: Final answer
    x = 2,638.96

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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.