Home / 4,187.16-5,778-2,418.84

Finding the Fourth Proportional to 4,187.16, 5,778 and 2,418.84

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Solution

The fourth proportional to 4,187.16, 5,778 and 2,418.84 is: 3,337.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.16 : 5,778 = 2,418.84 : x
  2. Step 2: Convert to fraction form
    4,187.16/5,778 = 2,418.84/x
  3. Step 3: Cross multiply
    4,187.16x = 5,778 × 2,418.84
  4. Step 4: Simplify right side
    4,187.16x = 13,976,057.52
  5. Step 5: Solve for x
    x = 13,976,057.52/4,187.16
  6. Step 6: Final answer
    x = 3,337.84

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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.