Home / 3,115.77-4,300.11-2,328.45

Finding the Fourth Proportional to 3,115.77, 4,300.11 and 2,328.45

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Solution

The fourth proportional to 3,115.77, 4,300.11 and 2,328.45 is: 3,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.77 : 4,300.11 = 2,328.45 : x
  2. Step 2: Convert to fraction form
    3,115.77/4,300.11 = 2,328.45/x
  3. Step 3: Cross multiply
    3,115.77x = 4,300.11 × 2,328.45
  4. Step 4: Simplify right side
    3,115.77x = 10,012,591.13
  5. Step 5: Solve for x
    x = 10,012,591.13/3,115.77
  6. Step 6: Final answer
    x = 3,213.52

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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.