Home / 5,479.02-8,218.98-1,780.29

Finding the Fourth Proportional to 5,479.02, 8,218.98 and 1,780.29

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Solution

The fourth proportional to 5,479.02, 8,218.98 and 1,780.29 is: 2,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.02 : 8,218.98 = 1,780.29 : x
  2. Step 2: Convert to fraction form
    5,479.02/8,218.98 = 1,780.29/x
  3. Step 3: Cross multiply
    5,479.02x = 8,218.98 × 1,780.29
  4. Step 4: Simplify right side
    5,479.02x = 14,632,167.90
  5. Step 5: Solve for x
    x = 14,632,167.90/5,479.02
  6. Step 6: Final answer
    x = 2,670.58

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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.