Home / 5,554.90-8,321.55-3,085.30

Finding the Fourth Proportional to 5,554.90, 8,321.55 and 3,085.30

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Solution

The fourth proportional to 5,554.90, 8,321.55 and 3,085.30 is: 4,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,554.90 : 8,321.55 = 3,085.30 : x
  2. Step 2: Convert to fraction form
    5,554.90/8,321.55 = 3,085.30/x
  3. Step 3: Cross multiply
    5,554.90x = 8,321.55 × 3,085.30
  4. Step 4: Simplify right side
    5,554.90x = 25,674,478.22
  5. Step 5: Solve for x
    x = 25,674,478.22/5,554.90
  6. Step 6: Final answer
    x = 4,621.95

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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.