Home / 3,570.30-5,355.45-1,105.47

Finding the Fourth Proportional to 3,570.30, 5,355.45 and 1,105.47

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Solution

The fourth proportional to 3,570.30, 5,355.45 and 1,105.47 is: 1,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.30 : 5,355.45 = 1,105.47 : x
  2. Step 2: Convert to fraction form
    3,570.30/5,355.45 = 1,105.47/x
  3. Step 3: Cross multiply
    3,570.30x = 5,355.45 × 1,105.47
  4. Step 4: Simplify right side
    3,570.30x = 5,920,289.31
  5. Step 5: Solve for x
    x = 5,920,289.31/3,570.30
  6. Step 6: Final answer
    x = 1,658.21

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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.