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Finding the Fourth Proportional to 4,988.77, 7,483.10 and 1,910.77

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Solution

The fourth proportional to 4,988.77, 7,483.10 and 1,910.77 is: 2,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.77 : 7,483.10 = 1,910.77 : x
  2. Step 2: Convert to fraction form
    4,988.77/7,483.10 = 1,910.77/x
  3. Step 3: Cross multiply
    4,988.77x = 7,483.10 × 1,910.77
  4. Step 4: Simplify right side
    4,988.77x = 14,298,469.06
  5. Step 5: Solve for x
    x = 14,298,469.06/4,988.77
  6. Step 6: Final answer
    x = 2,866.13

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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.