Home / 2,851.44-3,929.28-2,403.34

Finding the Fourth Proportional to 2,851.44, 3,929.28 and 2,403.34

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Solution

The fourth proportional to 2,851.44, 3,929.28 and 2,403.34 is: 3,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.44 : 3,929.28 = 2,403.34 : x
  2. Step 2: Convert to fraction form
    2,851.44/3,929.28 = 2,403.34/x
  3. Step 3: Cross multiply
    2,851.44x = 3,929.28 × 2,403.34
  4. Step 4: Simplify right side
    2,851.44x = 9,443,395.80
  5. Step 5: Solve for x
    x = 9,443,395.80/2,851.44
  6. Step 6: Final answer
    x = 3,311.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.