Home / 3,142.02-4,334.75-1,815.48

Finding the Fourth Proportional to 3,142.02, 4,334.75 and 1,815.48

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Solution

The fourth proportional to 3,142.02, 4,334.75 and 1,815.48 is: 2,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.02 : 4,334.75 = 1,815.48 : x
  2. Step 2: Convert to fraction form
    3,142.02/4,334.75 = 1,815.48/x
  3. Step 3: Cross multiply
    3,142.02x = 4,334.75 × 1,815.48
  4. Step 4: Simplify right side
    3,142.02x = 7,869,642.85
  5. Step 5: Solve for x
    x = 7,869,642.85/3,142.02
  6. Step 6: Final answer
    x = 2,504.64

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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.