Home / 3,339.64-4,605.78-2,159.56

Finding the Fourth Proportional to 3,339.64, 4,605.78 and 2,159.56

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Solution

The fourth proportional to 3,339.64, 4,605.78 and 2,159.56 is: 2,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.64 : 4,605.78 = 2,159.56 : x
  2. Step 2: Convert to fraction form
    3,339.64/4,605.78 = 2,159.56/x
  3. Step 3: Cross multiply
    3,339.64x = 4,605.78 × 2,159.56
  4. Step 4: Simplify right side
    3,339.64x = 9,946,458.26
  5. Step 5: Solve for x
    x = 9,946,458.26/3,339.64
  6. Step 6: Final answer
    x = 2,978.30

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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.