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Finding the Fourth Proportional to 7,080.84, 10,620.05 and 1,885.50

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Solution

The fourth proportional to 7,080.84, 10,620.05 and 1,885.50 is: 2,827.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.84 : 10,620.05 = 1,885.50 : x
  2. Step 2: Convert to fraction form
    7,080.84/10,620.05 = 1,885.50/x
  3. Step 3: Cross multiply
    7,080.84x = 10,620.05 × 1,885.50
  4. Step 4: Simplify right side
    7,080.84x = 20,024,094.85
  5. Step 5: Solve for x
    x = 20,024,094.85/7,080.84
  6. Step 6: Final answer
    x = 2,827.93

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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.