Home / 3,090.78-4,635.57-1,010.70

Finding the Fourth Proportional to 3,090.78, 4,635.57 and 1,010.70

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Solution

The fourth proportional to 3,090.78, 4,635.57 and 1,010.70 is: 1,515.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.78 : 4,635.57 = 1,010.70 : x
  2. Step 2: Convert to fraction form
    3,090.78/4,635.57 = 1,010.70/x
  3. Step 3: Cross multiply
    3,090.78x = 4,635.57 × 1,010.70
  4. Step 4: Simplify right side
    3,090.78x = 4,685,170.60
  5. Step 5: Solve for x
    x = 4,685,170.60/3,090.78
  6. Step 6: Final answer
    x = 1,515.85

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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.