Home / 3,814.88-5,260.08-3,538.40

Finding the Fourth Proportional to 3,814.88, 5,260.08 and 3,538.40

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Solution

The fourth proportional to 3,814.88, 5,260.08 and 3,538.40 is: 4,878.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.88 : 5,260.08 = 3,538.40 : x
  2. Step 2: Convert to fraction form
    3,814.88/5,260.08 = 3,538.40/x
  3. Step 3: Cross multiply
    3,814.88x = 5,260.08 × 3,538.40
  4. Step 4: Simplify right side
    3,814.88x = 18,612,267.07
  5. Step 5: Solve for x
    x = 18,612,267.07/3,814.88
  6. Step 6: Final answer
    x = 4,878.86

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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.