Home / 2,381.01-3,285.99-1,386.60

Finding the Fourth Proportional to 2,381.01, 3,285.99 and 1,386.60

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Solution

The fourth proportional to 2,381.01, 3,285.99 and 1,386.60 is: 1,913.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.01 : 3,285.99 = 1,386.60 : x
  2. Step 2: Convert to fraction form
    2,381.01/3,285.99 = 1,386.60/x
  3. Step 3: Cross multiply
    2,381.01x = 3,285.99 × 1,386.60
  4. Step 4: Simplify right side
    2,381.01x = 4,556,344.01
  5. Step 5: Solve for x
    x = 4,556,344.01/2,381.01
  6. Step 6: Final answer
    x = 1,913.62

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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.