Home / 4,080.86-6,121.16-1,307.50

Finding the Fourth Proportional to 4,080.86, 6,121.16 and 1,307.50

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Solution

The fourth proportional to 4,080.86, 6,121.16 and 1,307.50 is: 1,961.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.86 : 6,121.16 = 1,307.50 : x
  2. Step 2: Convert to fraction form
    4,080.86/6,121.16 = 1,307.50/x
  3. Step 3: Cross multiply
    4,080.86x = 6,121.16 × 1,307.50
  4. Step 4: Simplify right side
    4,080.86x = 8,003,416.70
  5. Step 5: Solve for x
    x = 8,003,416.70/4,080.86
  6. Step 6: Final answer
    x = 1,961.21

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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.