Home / 5,585.83-8,378.61-1,425.87

Finding the Fourth Proportional to 5,585.83, 8,378.61 and 1,425.87

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Solution

The fourth proportional to 5,585.83, 8,378.61 and 1,425.87 is: 2,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.83 : 8,378.61 = 1,425.87 : x
  2. Step 2: Convert to fraction form
    5,585.83/8,378.61 = 1,425.87/x
  3. Step 3: Cross multiply
    5,585.83x = 8,378.61 × 1,425.87
  4. Step 4: Simplify right side
    5,585.83x = 11,946,803.29
  5. Step 5: Solve for x
    x = 11,946,803.29/5,585.83
  6. Step 6: Final answer
    x = 2,138.77

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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.