Home / 5,159.94-7,117.04-3,171.58

Finding the Fourth Proportional to 5,159.94, 7,117.04 and 3,171.58

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Solution

The fourth proportional to 5,159.94, 7,117.04 and 3,171.58 is: 4,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.94 : 7,117.04 = 3,171.58 : x
  2. Step 2: Convert to fraction form
    5,159.94/7,117.04 = 3,171.58/x
  3. Step 3: Cross multiply
    5,159.94x = 7,117.04 × 3,171.58
  4. Step 4: Simplify right side
    5,159.94x = 22,572,261.72
  5. Step 5: Solve for x
    x = 22,572,261.72/5,159.94
  6. Step 6: Final answer
    x = 4,374.52

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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.