Home / 6,280.21-9,420.31-1,897.66

Finding the Fourth Proportional to 6,280.21, 9,420.31 and 1,897.66

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Solution

The fourth proportional to 6,280.21, 9,420.31 and 1,897.66 is: 2,846.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.21 : 9,420.31 = 1,897.66 : x
  2. Step 2: Convert to fraction form
    6,280.21/9,420.31 = 1,897.66/x
  3. Step 3: Cross multiply
    6,280.21x = 9,420.31 × 1,897.66
  4. Step 4: Simplify right side
    6,280.21x = 17,876,559.62
  5. Step 5: Solve for x
    x = 17,876,559.62/6,280.21
  6. Step 6: Final answer
    x = 2,846.49

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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.