Home / 6,439.69-8,885.75-3,751.35

Finding the Fourth Proportional to 6,439.69, 8,885.75 and 3,751.35

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Solution

The fourth proportional to 6,439.69, 8,885.75 and 3,751.35 is: 5,176.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.69 : 8,885.75 = 3,751.35 : x
  2. Step 2: Convert to fraction form
    6,439.69/8,885.75 = 3,751.35/x
  3. Step 3: Cross multiply
    6,439.69x = 8,885.75 × 3,751.35
  4. Step 4: Simplify right side
    6,439.69x = 33,333,558.26
  5. Step 5: Solve for x
    x = 33,333,558.26/6,439.69
  6. Step 6: Final answer
    x = 5,176.27

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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.