Home / 3,695.45-5,511.12-3,151.13

Finding the Fourth Proportional to 3,695.45, 5,511.12 and 3,151.13

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Solution

The fourth proportional to 3,695.45, 5,511.12 and 3,151.13 is: 4,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,695.45 : 5,511.12 = 3,151.13 : x
  2. Step 2: Convert to fraction form
    3,695.45/5,511.12 = 3,151.13/x
  3. Step 3: Cross multiply
    3,695.45x = 5,511.12 × 3,151.13
  4. Step 4: Simplify right side
    3,695.45x = 17,366,216.19
  5. Step 5: Solve for x
    x = 17,366,216.19/3,695.45
  6. Step 6: Final answer
    x = 4,699.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.