Home / 5,323.90-7,989.63-1,861.18

Finding the Fourth Proportional to 5,323.90, 7,989.63 and 1,861.18

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Solution

The fourth proportional to 5,323.90, 7,989.63 and 1,861.18 is: 2,793.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.90 : 7,989.63 = 1,861.18 : x
  2. Step 2: Convert to fraction form
    5,323.90/7,989.63 = 1,861.18/x
  3. Step 3: Cross multiply
    5,323.90x = 7,989.63 × 1,861.18
  4. Step 4: Simplify right side
    5,323.90x = 14,870,139.56
  5. Step 5: Solve for x
    x = 14,870,139.56/5,323.90
  6. Step 6: Final answer
    x = 2,793.09

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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.