Home / 5,423.74-8,135.94-1,528.48

Finding the Fourth Proportional to 5,423.74, 8,135.94 and 1,528.48

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Solution

The fourth proportional to 5,423.74, 8,135.94 and 1,528.48 is: 2,292.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.74 : 8,135.94 = 1,528.48 : x
  2. Step 2: Convert to fraction form
    5,423.74/8,135.94 = 1,528.48/x
  3. Step 3: Cross multiply
    5,423.74x = 8,135.94 × 1,528.48
  4. Step 4: Simplify right side
    5,423.74x = 12,435,621.57
  5. Step 5: Solve for x
    x = 12,435,621.57/5,423.74
  6. Step 6: Final answer
    x = 2,292.81

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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.