Home / 2,803.21-4,200.54-1,340.35

Finding the Fourth Proportional to 2,803.21, 4,200.54 and 1,340.35

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Solution

The fourth proportional to 2,803.21, 4,200.54 and 1,340.35 is: 2,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.21 : 4,200.54 = 1,340.35 : x
  2. Step 2: Convert to fraction form
    2,803.21/4,200.54 = 1,340.35/x
  3. Step 3: Cross multiply
    2,803.21x = 4,200.54 × 1,340.35
  4. Step 4: Simplify right side
    2,803.21x = 5,630,193.79
  5. Step 5: Solve for x
    x = 5,630,193.79/2,803.21
  6. Step 6: Final answer
    x = 2,008.48

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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.