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Finding the Fourth Proportional to 5,003.58, 6,911.43 and 4,065.60

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Solution

The fourth proportional to 5,003.58, 6,911.43 and 4,065.60 is: 5,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,003.58 : 6,911.43 = 4,065.60 : x
  2. Step 2: Convert to fraction form
    5,003.58/6,911.43 = 4,065.60/x
  3. Step 3: Cross multiply
    5,003.58x = 6,911.43 × 4,065.60
  4. Step 4: Simplify right side
    5,003.58x = 28,099,109.81
  5. Step 5: Solve for x
    x = 28,099,109.81/5,003.58
  6. Step 6: Final answer
    x = 5,615.80

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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.