Home / 2,516.08-3,771.36-1,420.16

Finding the Fourth Proportional to 2,516.08, 3,771.36 and 1,420.16

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Solution

The fourth proportional to 2,516.08, 3,771.36 and 1,420.16 is: 2,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.08 : 3,771.36 = 1,420.16 : x
  2. Step 2: Convert to fraction form
    2,516.08/3,771.36 = 1,420.16/x
  3. Step 3: Cross multiply
    2,516.08x = 3,771.36 × 1,420.16
  4. Step 4: Simplify right side
    2,516.08x = 5,355,934.62
  5. Step 5: Solve for x
    x = 5,355,934.62/2,516.08
  6. Step 6: Final answer
    x = 2,128.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.