Home / 2,328.45-3,213.38-1,280.53

Finding the Fourth Proportional to 2,328.45, 3,213.38 and 1,280.53

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Solution

The fourth proportional to 2,328.45, 3,213.38 and 1,280.53 is: 1,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.45 : 3,213.38 = 1,280.53 : x
  2. Step 2: Convert to fraction form
    2,328.45/3,213.38 = 1,280.53/x
  3. Step 3: Cross multiply
    2,328.45x = 3,213.38 × 1,280.53
  4. Step 4: Simplify right side
    2,328.45x = 4,114,829.49
  5. Step 5: Solve for x
    x = 4,114,829.49/2,328.45
  6. Step 6: Final answer
    x = 1,767.20

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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.