Home / 7,190.18-10,781.60-3,291.24

Finding the Fourth Proportional to 7,190.18, 10,781.60 and 3,291.24

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Solution

The fourth proportional to 7,190.18, 10,781.60 and 3,291.24 is: 4,935.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.18 : 10,781.60 = 3,291.24 : x
  2. Step 2: Convert to fraction form
    7,190.18/10,781.60 = 3,291.24/x
  3. Step 3: Cross multiply
    7,190.18x = 10,781.60 × 3,291.24
  4. Step 4: Simplify right side
    7,190.18x = 35,484,841.41
  5. Step 5: Solve for x
    x = 35,484,841.41/7,190.18
  6. Step 6: Final answer
    x = 4,935.18

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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.