Home / 7,154.70-9,874.59-4,171.50

Finding the Fourth Proportional to 7,154.70, 9,874.59 and 4,171.50

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Solution

The fourth proportional to 7,154.70, 9,874.59 and 4,171.50 is: 5,757.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.70 : 9,874.59 = 4,171.50 : x
  2. Step 2: Convert to fraction form
    7,154.70/9,874.59 = 4,171.50/x
  3. Step 3: Cross multiply
    7,154.70x = 9,874.59 × 4,171.50
  4. Step 4: Simplify right side
    7,154.70x = 41,191,852.19
  5. Step 5: Solve for x
    x = 41,191,852.19/7,154.70
  6. Step 6: Final answer
    x = 5,757.31

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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.