Home / 2,860.88-4,298.52-1,821.32

Finding the Fourth Proportional to 2,860.88, 4,298.52 and 1,821.32

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Solution

The fourth proportional to 2,860.88, 4,298.52 and 1,821.32 is: 2,736.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.88 : 4,298.52 = 1,821.32 : x
  2. Step 2: Convert to fraction form
    2,860.88/4,298.52 = 1,821.32/x
  3. Step 3: Cross multiply
    2,860.88x = 4,298.52 × 1,821.32
  4. Step 4: Simplify right side
    2,860.88x = 7,828,980.45
  5. Step 5: Solve for x
    x = 7,828,980.45/2,860.88
  6. Step 6: Final answer
    x = 2,736.56

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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.