Home / 3,853.98-5,780.67-1,080.50

Finding the Fourth Proportional to 3,853.98, 5,780.67 and 1,080.50

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Solution

The fourth proportional to 3,853.98, 5,780.67 and 1,080.50 is: 1,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.98 : 5,780.67 = 1,080.50 : x
  2. Step 2: Convert to fraction form
    3,853.98/5,780.67 = 1,080.50/x
  3. Step 3: Cross multiply
    3,853.98x = 5,780.67 × 1,080.50
  4. Step 4: Simplify right side
    3,853.98x = 6,246,008.53
  5. Step 5: Solve for x
    x = 6,246,008.53/3,853.98
  6. Step 6: Final answer
    x = 1,620.67

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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.