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Finding the Fourth Proportional to 3,365.64, 5,048.69 and 900.45

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Solution

The fourth proportional to 3,365.64, 5,048.69 and 900.45 is: 1,350.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365.64 : 5,048.69 = 900.45 : x
  2. Step 2: Convert to fraction form
    3,365.64/5,048.69 = 900.45/x
  3. Step 3: Cross multiply
    3,365.64x = 5,048.69 × 900.45
  4. Step 4: Simplify right side
    3,365.64x = 4,546,088.41
  5. Step 5: Solve for x
    x = 4,546,088.41/3,365.64
  6. Step 6: Final answer
    x = 1,350.74

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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.