Home / 2,860.55-4,291.74-1,218.50

Finding the Fourth Proportional to 2,860.55, 4,291.74 and 1,218.50

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Solution

The fourth proportional to 2,860.55, 4,291.74 and 1,218.50 is: 1,828.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.55 : 4,291.74 = 1,218.50 : x
  2. Step 2: Convert to fraction form
    2,860.55/4,291.74 = 1,218.50/x
  3. Step 3: Cross multiply
    2,860.55x = 4,291.74 × 1,218.50
  4. Step 4: Simplify right side
    2,860.55x = 5,229,463.73
  5. Step 5: Solve for x
    x = 5,229,463.73/2,860.55
  6. Step 6: Final answer
    x = 1,828.14

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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.