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Finding the Fourth Proportional to 3,518.87, 4,855.88 and 1,925.49

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Solution

The fourth proportional to 3,518.87, 4,855.88 and 1,925.49 is: 2,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.87 : 4,855.88 = 1,925.49 : x
  2. Step 2: Convert to fraction form
    3,518.87/4,855.88 = 1,925.49/x
  3. Step 3: Cross multiply
    3,518.87x = 4,855.88 × 1,925.49
  4. Step 4: Simplify right side
    3,518.87x = 9,349,938.75
  5. Step 5: Solve for x
    x = 9,349,938.75/3,518.87
  6. Step 6: Final answer
    x = 2,657.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.