Home / 2,132.81-3,199.28-900.26

Finding the Fourth Proportional to 2,132.81, 3,199.28 and 900.26

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Solution

The fourth proportional to 2,132.81, 3,199.28 and 900.26 is: 1,350.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.81 : 3,199.28 = 900.26 : x
  2. Step 2: Convert to fraction form
    2,132.81/3,199.28 = 900.26/x
  3. Step 3: Cross multiply
    2,132.81x = 3,199.28 × 900.26
  4. Step 4: Simplify right side
    2,132.81x = 2,880,163.32
  5. Step 5: Solve for x
    x = 2,880,163.32/2,132.81
  6. Step 6: Final answer
    x = 1,350.41

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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.