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Finding the Fourth Proportional to 2,158.02, 3,237.57 and 697.32

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Solution

The fourth proportional to 2,158.02, 3,237.57 and 697.32 is: 1,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.02 : 3,237.57 = 697.32 : x
  2. Step 2: Convert to fraction form
    2,158.02/3,237.57 = 697.32/x
  3. Step 3: Cross multiply
    2,158.02x = 3,237.57 × 697.32
  4. Step 4: Simplify right side
    2,158.02x = 2,257,622.31
  5. Step 5: Solve for x
    x = 2,257,622.31/2,158.02
  6. Step 6: Final answer
    x = 1,046.15

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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.