Home / 5,649.20-8,470.72-1,699.88

Finding the Fourth Proportional to 5,649.20, 8,470.72 and 1,699.88

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Solution

The fourth proportional to 5,649.20, 8,470.72 and 1,699.88 is: 2,548.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.20 : 8,470.72 = 1,699.88 : x
  2. Step 2: Convert to fraction form
    5,649.20/8,470.72 = 1,699.88/x
  3. Step 3: Cross multiply
    5,649.20x = 8,470.72 × 1,699.88
  4. Step 4: Simplify right side
    5,649.20x = 14,399,207.51
  5. Step 5: Solve for x
    x = 14,399,207.51/5,649.20
  6. Step 6: Final answer
    x = 2,548.89

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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.