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Finding the Fourth Proportional to 4,598.50, 6,899.78 and 1,520.50

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Solution

The fourth proportional to 4,598.50, 6,899.78 and 1,520.50 is: 2,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,598.50 : 6,899.78 = 1,520.50 : x
  2. Step 2: Convert to fraction form
    4,598.50/6,899.78 = 1,520.50/x
  3. Step 3: Cross multiply
    4,598.50x = 6,899.78 × 1,520.50
  4. Step 4: Simplify right side
    4,598.50x = 10,491,115.49
  5. Step 5: Solve for x
    x = 10,491,115.49/4,598.50
  6. Step 6: Final answer
    x = 2,281.42

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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.