Home / 4,984.58-6,877.77-3,120.50

Finding the Fourth Proportional to 4,984.58, 6,877.77 and 3,120.50

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Solution

The fourth proportional to 4,984.58, 6,877.77 and 3,120.50 is: 4,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.58 : 6,877.77 = 3,120.50 : x
  2. Step 2: Convert to fraction form
    4,984.58/6,877.77 = 3,120.50/x
  3. Step 3: Cross multiply
    4,984.58x = 6,877.77 × 3,120.50
  4. Step 4: Simplify right side
    4,984.58x = 21,462,081.29
  5. Step 5: Solve for x
    x = 21,462,081.29/4,984.58
  6. Step 6: Final answer
    x = 4,305.70

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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.