Home / 3,162.08-4,362.99-2,117.18

Finding the Fourth Proportional to 3,162.08, 4,362.99 and 2,117.18

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Solution

The fourth proportional to 3,162.08, 4,362.99 and 2,117.18 is: 2,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.08 : 4,362.99 = 2,117.18 : x
  2. Step 2: Convert to fraction form
    3,162.08/4,362.99 = 2,117.18/x
  3. Step 3: Cross multiply
    3,162.08x = 4,362.99 × 2,117.18
  4. Step 4: Simplify right side
    3,162.08x = 9,237,235.17
  5. Step 5: Solve for x
    x = 9,237,235.17/3,162.08
  6. Step 6: Final answer
    x = 2,921.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.