Home / 3,815.24-5,264.91-2,136.60

Finding the Fourth Proportional to 3,815.24, 5,264.91 and 2,136.60

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Solution

The fourth proportional to 3,815.24, 5,264.91 and 2,136.60 is: 2,948.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.24 : 5,264.91 = 2,136.60 : x
  2. Step 2: Convert to fraction form
    3,815.24/5,264.91 = 2,136.60/x
  3. Step 3: Cross multiply
    3,815.24x = 5,264.91 × 2,136.60
  4. Step 4: Simplify right side
    3,815.24x = 11,249,006.71
  5. Step 5: Solve for x
    x = 11,249,006.71/3,815.24
  6. Step 6: Final answer
    x = 2,948.44

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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.