Home / 4,218.60-5,821.65-2,330.32

Finding the Fourth Proportional to 4,218.60, 5,821.65 and 2,330.32

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Solution

The fourth proportional to 4,218.60, 5,821.65 and 2,330.32 is: 3,215.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.60 : 5,821.65 = 2,330.32 : x
  2. Step 2: Convert to fraction form
    4,218.60/5,821.65 = 2,330.32/x
  3. Step 3: Cross multiply
    4,218.60x = 5,821.65 × 2,330.32
  4. Step 4: Simplify right side
    4,218.60x = 13,566,292.87
  5. Step 5: Solve for x
    x = 13,566,292.87/4,218.60
  6. Step 6: Final answer
    x = 3,215.83

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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.