Home / 6,445.47-8,894.73-3,612.85

Finding the Fourth Proportional to 6,445.47, 8,894.73 and 3,612.85

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Solution

The fourth proportional to 6,445.47, 8,894.73 and 3,612.85 is: 4,985.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.47 : 8,894.73 = 3,612.85 : x
  2. Step 2: Convert to fraction form
    6,445.47/8,894.73 = 3,612.85/x
  3. Step 3: Cross multiply
    6,445.47x = 8,894.73 × 3,612.85
  4. Step 4: Simplify right side
    6,445.47x = 32,135,316.25
  5. Step 5: Solve for x
    x = 32,135,316.25/6,445.47
  6. Step 6: Final answer
    x = 4,985.72

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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.