Home / 3,815.15-5,265.03-2,136.62

Finding the Fourth Proportional to 3,815.15, 5,265.03 and 2,136.62

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Solution

The fourth proportional to 3,815.15, 5,265.03 and 2,136.62 is: 2,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.15 : 5,265.03 = 2,136.62 : x
  2. Step 2: Convert to fraction form
    3,815.15/5,265.03 = 2,136.62/x
  3. Step 3: Cross multiply
    3,815.15x = 5,265.03 × 2,136.62
  4. Step 4: Simplify right side
    3,815.15x = 11,249,368.40
  5. Step 5: Solve for x
    x = 11,249,368.40/3,815.15
  6. Step 6: Final answer
    x = 2,948.60

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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.