Home / 3,666.37-5,059.61-1,987.79

Finding the Fourth Proportional to 3,666.37, 5,059.61 and 1,987.79

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Solution

The fourth proportional to 3,666.37, 5,059.61 and 1,987.79 is: 2,743.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.37 : 5,059.61 = 1,987.79 : x
  2. Step 2: Convert to fraction form
    3,666.37/5,059.61 = 1,987.79/x
  3. Step 3: Cross multiply
    3,666.37x = 5,059.61 × 1,987.79
  4. Step 4: Simplify right side
    3,666.37x = 10,057,442.16
  5. Step 5: Solve for x
    x = 10,057,442.16/3,666.37
  6. Step 6: Final answer
    x = 2,743.16

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1.5x scale

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.