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Finding the Fourth Proportional to 6,518.62, 9,001.55 and 4,164.86

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Solution

The fourth proportional to 6,518.62, 9,001.55 and 4,164.86 is: 5,751.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.62 : 9,001.55 = 4,164.86 : x
  2. Step 2: Convert to fraction form
    6,518.62/9,001.55 = 4,164.86/x
  3. Step 3: Cross multiply
    6,518.62x = 9,001.55 × 4,164.86
  4. Step 4: Simplify right side
    6,518.62x = 37,490,228.45
  5. Step 5: Solve for x
    x = 37,490,228.45/6,518.62
  6. Step 6: Final answer
    x = 5,751.25

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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.