Home / 2,328.18-3,213.09-1,280.45

Finding the Fourth Proportional to 2,328.18, 3,213.09 and 1,280.45

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Solution

The fourth proportional to 2,328.18, 3,213.09 and 1,280.45 is: 1,767.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.18 : 3,213.09 = 1,280.45 : x
  2. Step 2: Convert to fraction form
    2,328.18/3,213.09 = 1,280.45/x
  3. Step 3: Cross multiply
    2,328.18x = 3,213.09 × 1,280.45
  4. Step 4: Simplify right side
    2,328.18x = 4,114,178.62
  5. Step 5: Solve for x
    x = 4,114,178.62/2,328.18
  6. Step 6: Final answer
    x = 1,767.12

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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.