Home / 2,325.21-3,487.86-919.59

Finding the Fourth Proportional to 2,325.21, 3,487.86 and 919.59

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Solution

The fourth proportional to 2,325.21, 3,487.86 and 919.59 is: 1,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.21 : 3,487.86 = 919.59 : x
  2. Step 2: Convert to fraction form
    2,325.21/3,487.86 = 919.59/x
  3. Step 3: Cross multiply
    2,325.21x = 3,487.86 × 919.59
  4. Step 4: Simplify right side
    2,325.21x = 3,207,401.18
  5. Step 5: Solve for x
    x = 3,207,401.18/2,325.21
  6. Step 6: Final answer
    x = 1,379.40

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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.