Home / 3,890.65-5,836.02-1,293.59

Finding the Fourth Proportional to 3,890.65, 5,836.02 and 1,293.59

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Solution

The fourth proportional to 3,890.65, 5,836.02 and 1,293.59 is: 1,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.65 : 5,836.02 = 1,293.59 : x
  2. Step 2: Convert to fraction form
    3,890.65/5,836.02 = 1,293.59/x
  3. Step 3: Cross multiply
    3,890.65x = 5,836.02 × 1,293.59
  4. Step 4: Simplify right side
    3,890.65x = 7,549,397.65
  5. Step 5: Solve for x
    x = 7,549,397.65/3,890.65
  6. Step 6: Final answer
    x = 1,940.40

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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.