Home / 4,910.52-7,365.72-1,988.80

Finding the Fourth Proportional to 4,910.52, 7,365.72 and 1,988.80

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Solution

The fourth proportional to 4,910.52, 7,365.72 and 1,988.80 is: 2,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.52 : 7,365.72 = 1,988.80 : x
  2. Step 2: Convert to fraction form
    4,910.52/7,365.72 = 1,988.80/x
  3. Step 3: Cross multiply
    4,910.52x = 7,365.72 × 1,988.80
  4. Step 4: Simplify right side
    4,910.52x = 14,648,943.94
  5. Step 5: Solve for x
    x = 14,648,943.94/4,910.52
  6. Step 6: Final answer
    x = 2,983.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.