Home / 3,838.08-5,296.58-2,159.47

Finding the Fourth Proportional to 3,838.08, 5,296.58 and 2,159.47

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Solution

The fourth proportional to 3,838.08, 5,296.58 and 2,159.47 is: 2,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.08 : 5,296.58 = 2,159.47 : x
  2. Step 2: Convert to fraction form
    3,838.08/5,296.58 = 2,159.47/x
  3. Step 3: Cross multiply
    3,838.08x = 5,296.58 × 2,159.47
  4. Step 4: Simplify right side
    3,838.08x = 11,437,809.53
  5. Step 5: Solve for x
    x = 11,437,809.53/3,838.08
  6. Step 6: Final answer
    x = 2,980.08

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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.