Home / 5,417.38-8,126.40-2,646.40

Finding the Fourth Proportional to 5,417.38, 8,126.40 and 2,646.40

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Solution

The fourth proportional to 5,417.38, 8,126.40 and 2,646.40 is: 3,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.38 : 8,126.40 = 2,646.40 : x
  2. Step 2: Convert to fraction form
    5,417.38/8,126.40 = 2,646.40/x
  3. Step 3: Cross multiply
    5,417.38x = 8,126.40 × 2,646.40
  4. Step 4: Simplify right side
    5,417.38x = 21,505,704.96
  5. Step 5: Solve for x
    x = 21,505,704.96/5,417.38
  6. Step 6: Final answer
    x = 3,969.76

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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.