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Finding the Fourth Proportional to 5,379.68, 8,016.71 and 5,203.51

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Solution

The fourth proportional to 5,379.68, 8,016.71 and 5,203.51 is: 7,754.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.68 : 8,016.71 = 5,203.51 : x
  2. Step 2: Convert to fraction form
    5,379.68/8,016.71 = 5,203.51/x
  3. Step 3: Cross multiply
    5,379.68x = 8,016.71 × 5,203.51
  4. Step 4: Simplify right side
    5,379.68x = 41,714,984.59
  5. Step 5: Solve for x
    x = 41,714,984.59/5,379.68
  6. Step 6: Final answer
    x = 7,754.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.