Home / 6,430.38-9,635.65-4,342.20

Finding the Fourth Proportional to 6,430.38, 9,635.65 and 4,342.20

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Solution

The fourth proportional to 6,430.38, 9,635.65 and 4,342.20 is: 6,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.38 : 9,635.65 = 4,342.20 : x
  2. Step 2: Convert to fraction form
    6,430.38/9,635.65 = 4,342.20/x
  3. Step 3: Cross multiply
    6,430.38x = 9,635.65 × 4,342.20
  4. Step 4: Simplify right side
    6,430.38x = 41,839,919.43
  5. Step 5: Solve for x
    x = 41,839,919.43/6,430.38
  6. Step 6: Final answer
    x = 6,506.60

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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.