Home / 6,090.30-9,135.45-4,429.80

Finding the Fourth Proportional to 6,090.30, 9,135.45 and 4,429.80

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Solution

The fourth proportional to 6,090.30, 9,135.45 and 4,429.80 is: 6,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,090.30 : 9,135.45 = 4,429.80 : x
  2. Step 2: Convert to fraction form
    6,090.30/9,135.45 = 4,429.80/x
  3. Step 3: Cross multiply
    6,090.30x = 9,135.45 × 4,429.80
  4. Step 4: Simplify right side
    6,090.30x = 40,468,216.41
  5. Step 5: Solve for x
    x = 40,468,216.41/6,090.30
  6. Step 6: Final answer
    x = 6,644.70

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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.