Home / 5,641.23-7,785.65-3,404.39

Finding the Fourth Proportional to 5,641.23, 7,785.65 and 3,404.39

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Solution

The fourth proportional to 5,641.23, 7,785.65 and 3,404.39 is: 4,698.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.23 : 7,785.65 = 3,404.39 : x
  2. Step 2: Convert to fraction form
    5,641.23/7,785.65 = 3,404.39/x
  3. Step 3: Cross multiply
    5,641.23x = 7,785.65 × 3,404.39
  4. Step 4: Simplify right side
    5,641.23x = 26,505,333.05
  5. Step 5: Solve for x
    x = 26,505,333.05/5,641.23
  6. Step 6: Final answer
    x = 4,698.50

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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.