Home / 2,156.55-3,232.66-1,507.11

Finding the Fourth Proportional to 2,156.55, 3,232.66 and 1,507.11

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Solution

The fourth proportional to 2,156.55, 3,232.66 and 1,507.11 is: 2,259.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.55 : 3,232.66 = 1,507.11 : x
  2. Step 2: Convert to fraction form
    2,156.55/3,232.66 = 1,507.11/x
  3. Step 3: Cross multiply
    2,156.55x = 3,232.66 × 1,507.11
  4. Step 4: Simplify right side
    2,156.55x = 4,871,974.21
  5. Step 5: Solve for x
    x = 4,871,974.21/2,156.55
  6. Step 6: Final answer
    x = 2,259.15

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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.