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Finding the Fourth Proportional to 4,994.14, 7,491.21 and 1,916.86

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Solution

The fourth proportional to 4,994.14, 7,491.21 and 1,916.86 is: 2,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994.14 : 7,491.21 = 1,916.86 : x
  2. Step 2: Convert to fraction form
    4,994.14/7,491.21 = 1,916.86/x
  3. Step 3: Cross multiply
    4,994.14x = 7,491.21 × 1,916.86
  4. Step 4: Simplify right side
    4,994.14x = 14,359,600.80
  5. Step 5: Solve for x
    x = 14,359,600.80/4,994.14
  6. Step 6: Final answer
    x = 2,875.29

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Similar ratio
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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.