Home / 2,860.71-4,298.26-1,821.18

Finding the Fourth Proportional to 2,860.71, 4,298.26 and 1,821.18

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Solution

The fourth proportional to 2,860.71, 4,298.26 and 1,821.18 is: 2,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.71 : 4,298.26 = 1,821.18 : x
  2. Step 2: Convert to fraction form
    2,860.71/4,298.26 = 1,821.18/x
  3. Step 3: Cross multiply
    2,860.71x = 4,298.26 × 1,821.18
  4. Step 4: Simplify right side
    2,860.71x = 7,827,905.15
  5. Step 5: Solve for x
    x = 7,827,905.15/2,860.71
  6. Step 6: Final answer
    x = 2,736.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.