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Finding the Fourth Proportional to 4,695.66, 6,479.82 and 2,808.28

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Solution

The fourth proportional to 4,695.66, 6,479.82 and 2,808.28 is: 3,875.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,695.66 : 6,479.82 = 2,808.28 : x
  2. Step 2: Convert to fraction form
    4,695.66/6,479.82 = 2,808.28/x
  3. Step 3: Cross multiply
    4,695.66x = 6,479.82 × 2,808.28
  4. Step 4: Simplify right side
    4,695.66x = 18,197,148.91
  5. Step 5: Solve for x
    x = 18,197,148.91/4,695.66
  6. Step 6: Final answer
    x = 3,875.31

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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.