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Finding the Fourth Proportional to 7,411.32, 11,116.98 and 2,970.99

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Solution

The fourth proportional to 7,411.32, 11,116.98 and 2,970.99 is: 4,456.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.32 : 11,116.98 = 2,970.99 : x
  2. Step 2: Convert to fraction form
    7,411.32/11,116.98 = 2,970.99/x
  3. Step 3: Cross multiply
    7,411.32x = 11,116.98 × 2,970.99
  4. Step 4: Simplify right side
    7,411.32x = 33,028,436.41
  5. Step 5: Solve for x
    x = 33,028,436.41/7,411.32
  6. Step 6: Final answer
    x = 4,456.49

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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.