Home / 6,515.20-9,769.72-2,354.40

Finding the Fourth Proportional to 6,515.20, 9,769.72 and 2,354.40

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Solution

The fourth proportional to 6,515.20, 9,769.72 and 2,354.40 is: 3,530.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.20 : 9,769.72 = 2,354.40 : x
  2. Step 2: Convert to fraction form
    6,515.20/9,769.72 = 2,354.40/x
  3. Step 3: Cross multiply
    6,515.20x = 9,769.72 × 2,354.40
  4. Step 4: Simplify right side
    6,515.20x = 23,001,828.77
  5. Step 5: Solve for x
    x = 23,001,828.77/6,515.20
  6. Step 6: Final answer
    x = 3,530.49

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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.