Home / 6,435.80-8,880.37-3,603.29

Finding the Fourth Proportional to 6,435.80, 8,880.37 and 3,603.29

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Solution

The fourth proportional to 6,435.80, 8,880.37 and 3,603.29 is: 4,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.80 : 8,880.37 = 3,603.29 : x
  2. Step 2: Convert to fraction form
    6,435.80/8,880.37 = 3,603.29/x
  3. Step 3: Cross multiply
    6,435.80x = 8,880.37 × 3,603.29
  4. Step 4: Simplify right side
    6,435.80x = 31,998,555.09
  5. Step 5: Solve for x
    x = 31,998,555.09/6,435.80
  6. Step 6: Final answer
    x = 4,971.96

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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.