Home / 6,435.03-8,880.38-3,640.47

Finding the Fourth Proportional to 6,435.03, 8,880.38 and 3,640.47

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Solution

The fourth proportional to 6,435.03, 8,880.38 and 3,640.47 is: 5,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.03 : 8,880.38 = 3,640.47 : x
  2. Step 2: Convert to fraction form
    6,435.03/8,880.38 = 3,640.47/x
  3. Step 3: Cross multiply
    6,435.03x = 8,880.38 × 3,640.47
  4. Step 4: Simplify right side
    6,435.03x = 32,328,756.98
  5. Step 5: Solve for x
    x = 32,328,756.98/6,435.03
  6. Step 6: Final answer
    x = 5,023.87

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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.