Home / 6,339.90-8,751.24-3,688.14

Finding the Fourth Proportional to 6,339.90, 8,751.24 and 3,688.14

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Solution

The fourth proportional to 6,339.90, 8,751.24 and 3,688.14 is: 5,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.90 : 8,751.24 = 3,688.14 : x
  2. Step 2: Convert to fraction form
    6,339.90/8,751.24 = 3,688.14/x
  3. Step 3: Cross multiply
    6,339.90x = 8,751.24 × 3,688.14
  4. Step 4: Simplify right side
    6,339.90x = 32,275,798.29
  5. Step 5: Solve for x
    x = 32,275,798.29/6,339.90
  6. Step 6: Final answer
    x = 5,090.90

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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.