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Finding the Fourth Proportional to 4,899.80, 6,762.18 and 2,803.88

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Solution

The fourth proportional to 4,899.80, 6,762.18 and 2,803.88 is: 3,869.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.80 : 6,762.18 = 2,803.88 : x
  2. Step 2: Convert to fraction form
    4,899.80/6,762.18 = 2,803.88/x
  3. Step 3: Cross multiply
    4,899.80x = 6,762.18 × 2,803.88
  4. Step 4: Simplify right side
    4,899.80x = 18,960,341.26
  5. Step 5: Solve for x
    x = 18,960,341.26/4,899.80
  6. Step 6: Final answer
    x = 3,869.62

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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.