Home / 3,635.02-5,015.65-2,143.40

Finding the Fourth Proportional to 3,635.02, 5,015.65 and 2,143.40

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Solution

The fourth proportional to 3,635.02, 5,015.65 and 2,143.40 is: 2,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.02 : 5,015.65 = 2,143.40 : x
  2. Step 2: Convert to fraction form
    3,635.02/5,015.65 = 2,143.40/x
  3. Step 3: Cross multiply
    3,635.02x = 5,015.65 × 2,143.40
  4. Step 4: Simplify right side
    3,635.02x = 10,750,544.21
  5. Step 5: Solve for x
    x = 10,750,544.21/3,635.02
  6. Step 6: Final answer
    x = 2,957.49

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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.