Home / 5,117.61-7,054.79-3,620.91

Finding the Fourth Proportional to 5,117.61, 7,054.79 and 3,620.91

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Solution

The fourth proportional to 5,117.61, 7,054.79 and 3,620.91 is: 4,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.61 : 7,054.79 = 3,620.91 : x
  2. Step 2: Convert to fraction form
    5,117.61/7,054.79 = 3,620.91/x
  3. Step 3: Cross multiply
    5,117.61x = 7,054.79 × 3,620.91
  4. Step 4: Simplify right side
    5,117.61x = 25,544,741.55
  5. Step 5: Solve for x
    x = 25,544,741.55/5,117.61
  6. Step 6: Final answer
    x = 4,991.54

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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.