Home / 5,495.90-8,244.35-1,986.78

Finding the Fourth Proportional to 5,495.90, 8,244.35 and 1,986.78

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Solution

The fourth proportional to 5,495.90, 8,244.35 and 1,986.78 is: 2,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,495.90 : 8,244.35 = 1,986.78 : x
  2. Step 2: Convert to fraction form
    5,495.90/8,244.35 = 1,986.78/x
  3. Step 3: Cross multiply
    5,495.90x = 8,244.35 × 1,986.78
  4. Step 4: Simplify right side
    5,495.90x = 16,379,714.66
  5. Step 5: Solve for x
    x = 16,379,714.66/5,495.90
  6. Step 6: Final answer
    x = 2,980.35

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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.