Home / 3,815.04-5,264.32-2,136.32

Finding the Fourth Proportional to 3,815.04, 5,264.32 and 2,136.32

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Solution

The fourth proportional to 3,815.04, 5,264.32 and 2,136.32 is: 2,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.04 : 5,264.32 = 2,136.32 : x
  2. Step 2: Convert to fraction form
    3,815.04/5,264.32 = 2,136.32/x
  3. Step 3: Cross multiply
    3,815.04x = 5,264.32 × 2,136.32
  4. Step 4: Simplify right side
    3,815.04x = 11,246,272.10
  5. Step 5: Solve for x
    x = 11,246,272.10/3,815.04
  6. Step 6: Final answer
    x = 2,947.88

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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.