Home / 2,151.64-2,967.87-1,489.06

Finding the Fourth Proportional to 2,151.64, 2,967.87 and 1,489.06

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Solution

The fourth proportional to 2,151.64, 2,967.87 and 1,489.06 is: 2,053.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.64 : 2,967.87 = 1,489.06 : x
  2. Step 2: Convert to fraction form
    2,151.64/2,967.87 = 1,489.06/x
  3. Step 3: Cross multiply
    2,151.64x = 2,967.87 × 1,489.06
  4. Step 4: Simplify right side
    2,151.64x = 4,419,336.50
  5. Step 5: Solve for x
    x = 4,419,336.50/2,151.64
  6. Step 6: Final answer
    x = 2,053.94

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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.