Home / 2,313.24-3,188.52-1,427.12

Finding the Fourth Proportional to 2,313.24, 3,188.52 and 1,427.12

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Solution

The fourth proportional to 2,313.24, 3,188.52 and 1,427.12 is: 1,967.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.24 : 3,188.52 = 1,427.12 : x
  2. Step 2: Convert to fraction form
    2,313.24/3,188.52 = 1,427.12/x
  3. Step 3: Cross multiply
    2,313.24x = 3,188.52 × 1,427.12
  4. Step 4: Simplify right side
    2,313.24x = 4,550,400.66
  5. Step 5: Solve for x
    x = 4,550,400.66/2,313.24
  6. Step 6: Final answer
    x = 1,967.11

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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.