Home / 5,384.60-8,076.90-3,411.80

Finding the Fourth Proportional to 5,384.60, 8,076.90 and 3,411.80

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Solution

The fourth proportional to 5,384.60, 8,076.90 and 3,411.80 is: 5,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.60 : 8,076.90 = 3,411.80 : x
  2. Step 2: Convert to fraction form
    5,384.60/8,076.90 = 3,411.80/x
  3. Step 3: Cross multiply
    5,384.60x = 8,076.90 × 3,411.80
  4. Step 4: Simplify right side
    5,384.60x = 27,556,767.42
  5. Step 5: Solve for x
    x = 27,556,767.42/5,384.60
  6. Step 6: Final answer
    x = 5,117.70

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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.