Home / 3,131.87-4,697.54-1,898.94

Finding the Fourth Proportional to 3,131.87, 4,697.54 and 1,898.94

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Solution

The fourth proportional to 3,131.87, 4,697.54 and 1,898.94 is: 2,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.87 : 4,697.54 = 1,898.94 : x
  2. Step 2: Convert to fraction form
    3,131.87/4,697.54 = 1,898.94/x
  3. Step 3: Cross multiply
    3,131.87x = 4,697.54 × 1,898.94
  4. Step 4: Simplify right side
    3,131.87x = 8,920,372.53
  5. Step 5: Solve for x
    x = 8,920,372.53/3,131.87
  6. Step 6: Final answer
    x = 2,848.26

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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.