Home / 6,042.90-8,339.06-3,390.30

Finding the Fourth Proportional to 6,042.90, 8,339.06 and 3,390.30

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Solution

The fourth proportional to 6,042.90, 8,339.06 and 3,390.30 is: 4,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,042.90 : 8,339.06 = 3,390.30 : x
  2. Step 2: Convert to fraction form
    6,042.90/8,339.06 = 3,390.30/x
  3. Step 3: Cross multiply
    6,042.90x = 8,339.06 × 3,390.30
  4. Step 4: Simplify right side
    6,042.90x = 28,271,915.12
  5. Step 5: Solve for x
    x = 28,271,915.12/6,042.90
  6. Step 6: Final answer
    x = 4,678.53

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.