Home / 2,864.95-4,297.87-1,221.50

Finding the Fourth Proportional to 2,864.95, 4,297.87 and 1,221.50

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Solution

The fourth proportional to 2,864.95, 4,297.87 and 1,221.50 is: 1,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.95 : 4,297.87 = 1,221.50 : x
  2. Step 2: Convert to fraction form
    2,864.95/4,297.87 = 1,221.50/x
  3. Step 3: Cross multiply
    2,864.95x = 4,297.87 × 1,221.50
  4. Step 4: Simplify right side
    2,864.95x = 5,249,848.21
  5. Step 5: Solve for x
    x = 5,249,848.21/2,864.95
  6. Step 6: Final answer
    x = 1,832.44

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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.