Home / 2,887.52-3,985.81-1,708.59

Finding the Fourth Proportional to 2,887.52, 3,985.81 and 1,708.59

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Solution

The fourth proportional to 2,887.52, 3,985.81 and 1,708.59 is: 2,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.52 : 3,985.81 = 1,708.59 : x
  2. Step 2: Convert to fraction form
    2,887.52/3,985.81 = 1,708.59/x
  3. Step 3: Cross multiply
    2,887.52x = 3,985.81 × 1,708.59
  4. Step 4: Simplify right side
    2,887.52x = 6,810,125.78
  5. Step 5: Solve for x
    x = 6,810,125.78/2,887.52
  6. Step 6: Final answer
    x = 2,358.47

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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.