Home / 4,781.09-7,171.18-1,271.18

Finding the Fourth Proportional to 4,781.09, 7,171.18 and 1,271.18

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Solution

The fourth proportional to 4,781.09, 7,171.18 and 1,271.18 is: 1,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.09 : 7,171.18 = 1,271.18 : x
  2. Step 2: Convert to fraction form
    4,781.09/7,171.18 = 1,271.18/x
  3. Step 3: Cross multiply
    4,781.09x = 7,171.18 × 1,271.18
  4. Step 4: Simplify right side
    4,781.09x = 9,115,875.34
  5. Step 5: Solve for x
    x = 9,115,875.34/4,781.09
  6. Step 6: Final answer
    x = 1,906.65

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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.