Home / 5,731.80-7,909.74-3,374.09

Finding the Fourth Proportional to 5,731.80, 7,909.74 and 3,374.09

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Solution

The fourth proportional to 5,731.80, 7,909.74 and 3,374.09 is: 4,656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.80 : 7,909.74 = 3,374.09 : x
  2. Step 2: Convert to fraction form
    5,731.80/7,909.74 = 3,374.09/x
  3. Step 3: Cross multiply
    5,731.80x = 7,909.74 × 3,374.09
  4. Step 4: Simplify right side
    5,731.80x = 26,688,135.09
  5. Step 5: Solve for x
    x = 26,688,135.09/5,731.80
  6. Step 6: Final answer
    x = 4,656.15

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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.