Home / 2,742.93-4,109.77-1,511.20

Finding the Fourth Proportional to 2,742.93, 4,109.77 and 1,511.20

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Solution

The fourth proportional to 2,742.93, 4,109.77 and 1,511.20 is: 2,264.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.93 : 4,109.77 = 1,511.20 : x
  2. Step 2: Convert to fraction form
    2,742.93/4,109.77 = 1,511.20/x
  3. Step 3: Cross multiply
    2,742.93x = 4,109.77 × 1,511.20
  4. Step 4: Simplify right side
    2,742.93x = 6,210,684.42
  5. Step 5: Solve for x
    x = 6,210,684.42/2,742.93
  6. Step 6: Final answer
    x = 2,264.25

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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.