Home / 6,239.40-9,354.18-4,285.80

Finding the Fourth Proportional to 6,239.40, 9,354.18 and 4,285.80

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Solution

The fourth proportional to 6,239.40, 9,354.18 and 4,285.80 is: 6,425.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.40 : 9,354.18 = 4,285.80 : x
  2. Step 2: Convert to fraction form
    6,239.40/9,354.18 = 4,285.80/x
  3. Step 3: Cross multiply
    6,239.40x = 9,354.18 × 4,285.80
  4. Step 4: Simplify right side
    6,239.40x = 40,090,144.64
  5. Step 5: Solve for x
    x = 40,090,144.64/6,239.40
  6. Step 6: Final answer
    x = 6,425.32

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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.