Home / 2,355.11-3,247.79-1,558.07

Finding the Fourth Proportional to 2,355.11, 3,247.79 and 1,558.07

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Solution

The fourth proportional to 2,355.11, 3,247.79 and 1,558.07 is: 2,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.11 : 3,247.79 = 1,558.07 : x
  2. Step 2: Convert to fraction form
    2,355.11/3,247.79 = 1,558.07/x
  3. Step 3: Cross multiply
    2,355.11x = 3,247.79 × 1,558.07
  4. Step 4: Simplify right side
    2,355.11x = 5,060,260.14
  5. Step 5: Solve for x
    x = 5,060,260.14/2,355.11
  6. Step 6: Final answer
    x = 2,148.63

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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.