Home / 4,875.12-6,729.39-2,887.38

Finding the Fourth Proportional to 4,875.12, 6,729.39 and 2,887.38

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Solution

The fourth proportional to 4,875.12, 6,729.39 and 2,887.38 is: 3,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,875.12 : 6,729.39 = 2,887.38 : x
  2. Step 2: Convert to fraction form
    4,875.12/6,729.39 = 2,887.38/x
  3. Step 3: Cross multiply
    4,875.12x = 6,729.39 × 2,887.38
  4. Step 4: Simplify right side
    4,875.12x = 19,430,331.33
  5. Step 5: Solve for x
    x = 19,430,331.33/4,875.12
  6. Step 6: Final answer
    x = 3,985.61

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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.