Home / 5,324.77-7,987.56-1,813.69

Finding the Fourth Proportional to 5,324.77, 7,987.56 and 1,813.69

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Solution

The fourth proportional to 5,324.77, 7,987.56 and 1,813.69 is: 2,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.77 : 7,987.56 = 1,813.69 : x
  2. Step 2: Convert to fraction form
    5,324.77/7,987.56 = 1,813.69/x
  3. Step 3: Cross multiply
    5,324.77x = 7,987.56 × 1,813.69
  4. Step 4: Simplify right side
    5,324.77x = 14,486,957.70
  5. Step 5: Solve for x
    x = 14,486,957.70/5,324.77
  6. Step 6: Final answer
    x = 2,720.67

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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.