Home / 6,639.18-9,953.28-3,677.49

Finding the Fourth Proportional to 6,639.18, 9,953.28 and 3,677.49

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Solution

The fourth proportional to 6,639.18, 9,953.28 and 3,677.49 is: 5,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.18 : 9,953.28 = 3,677.49 : x
  2. Step 2: Convert to fraction form
    6,639.18/9,953.28 = 3,677.49/x
  3. Step 3: Cross multiply
    6,639.18x = 9,953.28 × 3,677.49
  4. Step 4: Simplify right side
    6,639.18x = 36,603,087.67
  5. Step 5: Solve for x
    x = 36,603,087.67/6,639.18
  6. Step 6: Final answer
    x = 5,513.19

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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.