Home / 2,158.03-3,236.91-697.06

Finding the Fourth Proportional to 2,158.03, 3,236.91 and 697.06

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Solution

The fourth proportional to 2,158.03, 3,236.91 and 697.06 is: 1,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.03 : 3,236.91 = 697.06 : x
  2. Step 2: Convert to fraction form
    2,158.03/3,236.91 = 697.06/x
  3. Step 3: Cross multiply
    2,158.03x = 3,236.91 × 697.06
  4. Step 4: Simplify right side
    2,158.03x = 2,256,320.48
  5. Step 5: Solve for x
    x = 2,256,320.48/2,158.03
  6. Step 6: Final answer
    x = 1,045.55

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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.