Home / 3,011.22-4,515.16-930.64

Finding the Fourth Proportional to 3,011.22, 4,515.16 and 930.64

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Solution

The fourth proportional to 3,011.22, 4,515.16 and 930.64 is: 1,395.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.22 : 4,515.16 = 930.64 : x
  2. Step 2: Convert to fraction form
    3,011.22/4,515.16 = 930.64/x
  3. Step 3: Cross multiply
    3,011.22x = 4,515.16 × 930.64
  4. Step 4: Simplify right side
    3,011.22x = 4,201,988.50
  5. Step 5: Solve for x
    x = 4,201,988.50/3,011.22
  6. Step 6: Final answer
    x = 1,395.44

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Double scale
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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.