Home / 2,157.06-3,235.62-923.70

Finding the Fourth Proportional to 2,157.06, 3,235.62 and 923.70

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Solution

The fourth proportional to 2,157.06, 3,235.62 and 923.70 is: 1,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.06 : 3,235.62 = 923.70 : x
  2. Step 2: Convert to fraction form
    2,157.06/3,235.62 = 923.70/x
  3. Step 3: Cross multiply
    2,157.06x = 3,235.62 × 923.70
  4. Step 4: Simplify right side
    2,157.06x = 2,988,742.19
  5. Step 5: Solve for x
    x = 2,988,742.19/2,157.06
  6. Step 6: Final answer
    x = 1,385.56

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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.