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Finding the Fourth Proportional to 3,556.99, 5,335.63 and 1,335.60

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Solution

The fourth proportional to 3,556.99, 5,335.63 and 1,335.60 is: 2,003.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.99 : 5,335.63 = 1,335.60 : x
  2. Step 2: Convert to fraction form
    3,556.99/5,335.63 = 1,335.60/x
  3. Step 3: Cross multiply
    3,556.99x = 5,335.63 × 1,335.60
  4. Step 4: Simplify right side
    3,556.99x = 7,126,267.43
  5. Step 5: Solve for x
    x = 7,126,267.43/3,556.99
  6. Step 6: Final answer
    x = 2,003.45

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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.