Home / 5,479.83-8,218.98-1,782.09

Finding the Fourth Proportional to 5,479.83, 8,218.98 and 1,782.09

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Solution

The fourth proportional to 5,479.83, 8,218.98 and 1,782.09 is: 2,672.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.83 : 8,218.98 = 1,782.09 : x
  2. Step 2: Convert to fraction form
    5,479.83/8,218.98 = 1,782.09/x
  3. Step 3: Cross multiply
    5,479.83x = 8,218.98 × 1,782.09
  4. Step 4: Simplify right side
    5,479.83x = 14,646,962.07
  5. Step 5: Solve for x
    x = 14,646,962.07/5,479.83
  6. Step 6: Final answer
    x = 2,672.89

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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.