Home / 4,218.86-5,821.70-2,355.50

Finding the Fourth Proportional to 4,218.86, 5,821.70 and 2,355.50

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Solution

The fourth proportional to 4,218.86, 5,821.70 and 2,355.50 is: 3,250.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.86 : 5,821.70 = 2,355.50 : x
  2. Step 2: Convert to fraction form
    4,218.86/5,821.70 = 2,355.50/x
  3. Step 3: Cross multiply
    4,218.86x = 5,821.70 × 2,355.50
  4. Step 4: Simplify right side
    4,218.86x = 13,713,014.35
  5. Step 5: Solve for x
    x = 13,713,014.35/4,218.86
  6. Step 6: Final answer
    x = 3,250.41

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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.