Home / 2,887.25-3,984.36-1,708.29

Finding the Fourth Proportional to 2,887.25, 3,984.36 and 1,708.29

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Solution

The fourth proportional to 2,887.25, 3,984.36 and 1,708.29 is: 2,357.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.25 : 3,984.36 = 1,708.29 : x
  2. Step 2: Convert to fraction form
    2,887.25/3,984.36 = 1,708.29/x
  3. Step 3: Cross multiply
    2,887.25x = 3,984.36 × 1,708.29
  4. Step 4: Simplify right side
    2,887.25x = 6,806,442.34
  5. Step 5: Solve for x
    x = 6,806,442.34/2,887.25
  6. Step 6: Final answer
    x = 2,357.42

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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.