Home / 5,621.70-7,758.62-3,384.69

Finding the Fourth Proportional to 5,621.70, 7,758.62 and 3,384.69

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Solution

The fourth proportional to 5,621.70, 7,758.62 and 3,384.69 is: 4,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.70 : 7,758.62 = 3,384.69 : x
  2. Step 2: Convert to fraction form
    5,621.70/7,758.62 = 3,384.69/x
  3. Step 3: Cross multiply
    5,621.70x = 7,758.62 × 3,384.69
  4. Step 4: Simplify right side
    5,621.70x = 26,260,506.60
  5. Step 5: Solve for x
    x = 26,260,506.60/5,621.70
  6. Step 6: Final answer
    x = 4,671.27

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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.