Home / 2,568.64-3,545.36-1,520.50

Finding the Fourth Proportional to 2,568.64, 3,545.36 and 1,520.50

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Solution

The fourth proportional to 2,568.64, 3,545.36 and 1,520.50 is: 2,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,568.64 : 3,545.36 = 1,520.50 : x
  2. Step 2: Convert to fraction form
    2,568.64/3,545.36 = 1,520.50/x
  3. Step 3: Cross multiply
    2,568.64x = 3,545.36 × 1,520.50
  4. Step 4: Simplify right side
    2,568.64x = 5,390,719.88
  5. Step 5: Solve for x
    x = 5,390,719.88/2,568.64
  6. Step 6: Final answer
    x = 2,098.67

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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.