Home / 6,449.29-8,898.47-4,090.57

Finding the Fourth Proportional to 6,449.29, 8,898.47 and 4,090.57

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Solution

The fourth proportional to 6,449.29, 8,898.47 and 4,090.57 is: 5,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.29 : 8,898.47 = 4,090.57 : x
  2. Step 2: Convert to fraction form
    6,449.29/8,898.47 = 4,090.57/x
  3. Step 3: Cross multiply
    6,449.29x = 8,898.47 × 4,090.57
  4. Step 4: Simplify right side
    6,449.29x = 36,399,793.98
  5. Step 5: Solve for x
    x = 36,399,793.98/6,449.29
  6. Step 6: Final answer
    x = 5,644.00

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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.