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Finding the Fourth Proportional to 6,340.90, 9,513.26 and 1,898.71

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Solution

The fourth proportional to 6,340.90, 9,513.26 and 1,898.71 is: 2,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340.90 : 9,513.26 = 1,898.71 : x
  2. Step 2: Convert to fraction form
    6,340.90/9,513.26 = 1,898.71/x
  3. Step 3: Cross multiply
    6,340.90x = 9,513.26 × 1,898.71
  4. Step 4: Simplify right side
    6,340.90x = 18,062,902.86
  5. Step 5: Solve for x
    x = 18,062,902.86/6,340.90
  6. Step 6: Final answer
    x = 2,848.64

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Double scale
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Similar ratio
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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.