Home / 3,916.40-5,873.99-1,283.12

Finding the Fourth Proportional to 3,916.40, 5,873.99 and 1,283.12

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Solution

The fourth proportional to 3,916.40, 5,873.99 and 1,283.12 is: 1,924.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.40 : 5,873.99 = 1,283.12 : x
  2. Step 2: Convert to fraction form
    3,916.40/5,873.99 = 1,283.12/x
  3. Step 3: Cross multiply
    3,916.40x = 5,873.99 × 1,283.12
  4. Step 4: Simplify right side
    3,916.40x = 7,537,014.60
  5. Step 5: Solve for x
    x = 7,537,014.60/3,916.40
  6. Step 6: Final answer
    x = 1,924.47

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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.