Home / 6,084.20-9,126.30-1,980.20

Finding the Fourth Proportional to 6,084.20, 9,126.30 and 1,980.20

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Solution

The fourth proportional to 6,084.20, 9,126.30 and 1,980.20 is: 2,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,084.20 : 9,126.30 = 1,980.20 : x
  2. Step 2: Convert to fraction form
    6,084.20/9,126.30 = 1,980.20/x
  3. Step 3: Cross multiply
    6,084.20x = 9,126.30 × 1,980.20
  4. Step 4: Simplify right side
    6,084.20x = 18,071,899.26
  5. Step 5: Solve for x
    x = 18,071,899.26/6,084.20
  6. Step 6: Final answer
    x = 2,970.30

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Half scale
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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.