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Finding the Fourth Proportional to 3,479.59, 4,802.88 and 3,012.51

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Solution

The fourth proportional to 3,479.59, 4,802.88 and 3,012.51 is: 4,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.59 : 4,802.88 = 3,012.51 : x
  2. Step 2: Convert to fraction form
    3,479.59/4,802.88 = 3,012.51/x
  3. Step 3: Cross multiply
    3,479.59x = 4,802.88 × 3,012.51
  4. Step 4: Simplify right side
    3,479.59x = 14,468,724.03
  5. Step 5: Solve for x
    x = 14,468,724.03/3,479.59
  6. Step 6: Final answer
    x = 4,158.17

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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.