Home / 4,929.87-7,392.30-1,641.81

Finding the Fourth Proportional to 4,929.87, 7,392.30 and 1,641.81

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Solution

The fourth proportional to 4,929.87, 7,392.30 and 1,641.81 is: 2,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929.87 : 7,392.30 = 1,641.81 : x
  2. Step 2: Convert to fraction form
    4,929.87/7,392.30 = 1,641.81/x
  3. Step 3: Cross multiply
    4,929.87x = 7,392.30 × 1,641.81
  4. Step 4: Simplify right side
    4,929.87x = 12,136,715.10
  5. Step 5: Solve for x
    x = 12,136,715.10/4,929.87
  6. Step 6: Final answer
    x = 2,461.88

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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.