Home / 3,565.68-4,920-2,388.48

Finding the Fourth Proportional to 3,565.68, 4,920 and 2,388.48

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Solution

The fourth proportional to 3,565.68, 4,920 and 2,388.48 is: 3,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.68 : 4,920 = 2,388.48 : x
  2. Step 2: Convert to fraction form
    3,565.68/4,920 = 2,388.48/x
  3. Step 3: Cross multiply
    3,565.68x = 4,920 × 2,388.48
  4. Step 4: Simplify right side
    3,565.68x = 11,751,321.60
  5. Step 5: Solve for x
    x = 11,751,321.60/3,565.68
  6. Step 6: Final answer
    x = 3,295.67

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1.5x scale

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.