Home / 7,127.51-10,690.67-2,197.19

Finding the Fourth Proportional to 7,127.51, 10,690.67 and 2,197.19

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Solution

The fourth proportional to 7,127.51, 10,690.67 and 2,197.19 is: 3,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.51 : 10,690.67 = 2,197.19 : x
  2. Step 2: Convert to fraction form
    7,127.51/10,690.67 = 2,197.19/x
  3. Step 3: Cross multiply
    7,127.51x = 10,690.67 × 2,197.19
  4. Step 4: Simplify right side
    7,127.51x = 23,489,484.90
  5. Step 5: Solve for x
    x = 23,489,484.90/7,127.51
  6. Step 6: Final answer
    x = 3,295.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.