Home / 2,163.72-2,987.30-1,500.33

Finding the Fourth Proportional to 2,163.72, 2,987.30 and 1,500.33

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Solution

The fourth proportional to 2,163.72, 2,987.30 and 1,500.33 is: 2,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.72 : 2,987.30 = 1,500.33 : x
  2. Step 2: Convert to fraction form
    2,163.72/2,987.30 = 1,500.33/x
  3. Step 3: Cross multiply
    2,163.72x = 2,987.30 × 1,500.33
  4. Step 4: Simplify right side
    2,163.72x = 4,481,935.81
  5. Step 5: Solve for x
    x = 4,481,935.81/2,163.72
  6. Step 6: Final answer
    x = 2,071.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.