Home / 3,501.12-5,250.15-1,857.30

Finding the Fourth Proportional to 3,501.12, 5,250.15 and 1,857.30

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Solution

The fourth proportional to 3,501.12, 5,250.15 and 1,857.30 is: 2,785.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.12 : 5,250.15 = 1,857.30 : x
  2. Step 2: Convert to fraction form
    3,501.12/5,250.15 = 1,857.30/x
  3. Step 3: Cross multiply
    3,501.12x = 5,250.15 × 1,857.30
  4. Step 4: Simplify right side
    3,501.12x = 9,751,103.60
  5. Step 5: Solve for x
    x = 9,751,103.60/3,501.12
  6. Step 6: Final answer
    x = 2,785.14

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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.