Home / 5,550.40-8,325.64-2,085.20

Finding the Fourth Proportional to 5,550.40, 8,325.64 and 2,085.20

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Solution

The fourth proportional to 5,550.40, 8,325.64 and 2,085.20 is: 3,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.40 : 8,325.64 = 2,085.20 : x
  2. Step 2: Convert to fraction form
    5,550.40/8,325.64 = 2,085.20/x
  3. Step 3: Cross multiply
    5,550.40x = 8,325.64 × 2,085.20
  4. Step 4: Simplify right side
    5,550.40x = 17,360,624.53
  5. Step 5: Solve for x
    x = 17,360,624.53/5,550.40
  6. Step 6: Final answer
    x = 3,127.82

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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.