Home / 6,128.90-9,193.35-4,276.10

Finding the Fourth Proportional to 6,128.90, 9,193.35 and 4,276.10

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Solution

The fourth proportional to 6,128.90, 9,193.35 and 4,276.10 is: 6,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.90 : 9,193.35 = 4,276.10 : x
  2. Step 2: Convert to fraction form
    6,128.90/9,193.35 = 4,276.10/x
  3. Step 3: Cross multiply
    6,128.90x = 9,193.35 × 4,276.10
  4. Step 4: Simplify right side
    6,128.90x = 39,311,683.94
  5. Step 5: Solve for x
    x = 39,311,683.94/6,128.90
  6. Step 6: Final answer
    x = 6,414.15

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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.