Home / 2,861.87-4,290.04-1,105.58

Finding the Fourth Proportional to 2,861.87, 4,290.04 and 1,105.58

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Solution

The fourth proportional to 2,861.87, 4,290.04 and 1,105.58 is: 1,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.87 : 4,290.04 = 1,105.58 : x
  2. Step 2: Convert to fraction form
    2,861.87/4,290.04 = 1,105.58/x
  3. Step 3: Cross multiply
    2,861.87x = 4,290.04 × 1,105.58
  4. Step 4: Simplify right side
    2,861.87x = 4,742,982.42
  5. Step 5: Solve for x
    x = 4,742,982.42/2,861.87
  6. Step 6: Final answer
    x = 1,657.30

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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.