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Finding the Fourth Proportional to 3,674.40, 5,510.64 and 1,364.64

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Solution

The fourth proportional to 3,674.40, 5,510.64 and 1,364.64 is: 2,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.40 : 5,510.64 = 1,364.64 : x
  2. Step 2: Convert to fraction form
    3,674.40/5,510.64 = 1,364.64/x
  3. Step 3: Cross multiply
    3,674.40x = 5,510.64 × 1,364.64
  4. Step 4: Simplify right side
    3,674.40x = 7,520,039.77
  5. Step 5: Solve for x
    x = 7,520,039.77/3,674.40
  6. Step 6: Final answer
    x = 2,046.60

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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.