Home / 3,330.24-4,987.20-1,684.32

Finding the Fourth Proportional to 3,330.24, 4,987.20 and 1,684.32

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Solution

The fourth proportional to 3,330.24, 4,987.20 and 1,684.32 is: 2,522.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.24 : 4,987.20 = 1,684.32 : x
  2. Step 2: Convert to fraction form
    3,330.24/4,987.20 = 1,684.32/x
  3. Step 3: Cross multiply
    3,330.24x = 4,987.20 × 1,684.32
  4. Step 4: Simplify right side
    3,330.24x = 8,400,040.70
  5. Step 5: Solve for x
    x = 8,400,040.70/3,330.24
  6. Step 6: Final answer
    x = 2,522.35

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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.