Home / 4,740.20-7,109.40-1,453.40

Finding the Fourth Proportional to 4,740.20, 7,109.40 and 1,453.40

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Solution

The fourth proportional to 4,740.20, 7,109.40 and 1,453.40 is: 2,179.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.20 : 7,109.40 = 1,453.40 : x
  2. Step 2: Convert to fraction form
    4,740.20/7,109.40 = 1,453.40/x
  3. Step 3: Cross multiply
    4,740.20x = 7,109.40 × 1,453.40
  4. Step 4: Simplify right side
    4,740.20x = 10,332,801.96
  5. Step 5: Solve for x
    x = 10,332,801.96/4,740.20
  6. Step 6: Final answer
    x = 2,179.82

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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.