Home / 3,080.90-4,619.72-1,347.50

Finding the Fourth Proportional to 3,080.90, 4,619.72 and 1,347.50

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Solution

The fourth proportional to 3,080.90, 4,619.72 and 1,347.50 is: 2,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.90 : 4,619.72 = 1,347.50 : x
  2. Step 2: Convert to fraction form
    3,080.90/4,619.72 = 1,347.50/x
  3. Step 3: Cross multiply
    3,080.90x = 4,619.72 × 1,347.50
  4. Step 4: Simplify right side
    3,080.90x = 6,225,072.70
  5. Step 5: Solve for x
    x = 6,225,072.70/3,080.90
  6. Step 6: Final answer
    x = 2,020.54

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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.