Home / 4,984.40-6,877.37-2,887.31

Finding the Fourth Proportional to 4,984.40, 6,877.37 and 2,887.31

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Solution

The fourth proportional to 4,984.40, 6,877.37 and 2,887.31 is: 3,983.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.40 : 6,877.37 = 2,887.31 : x
  2. Step 2: Convert to fraction form
    4,984.40/6,877.37 = 2,887.31/x
  3. Step 3: Cross multiply
    4,984.40x = 6,877.37 × 2,887.31
  4. Step 4: Simplify right side
    4,984.40x = 19,857,123.59
  5. Step 5: Solve for x
    x = 19,857,123.59/4,984.40
  6. Step 6: Final answer
    x = 3,983.85

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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.