Home / 7,475.64-10,315.92-4,331.28

Finding the Fourth Proportional to 7,475.64, 10,315.92 and 4,331.28

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Solution

The fourth proportional to 7,475.64, 10,315.92 and 4,331.28 is: 5,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.64 : 10,315.92 = 4,331.28 : x
  2. Step 2: Convert to fraction form
    7,475.64/10,315.92 = 4,331.28/x
  3. Step 3: Cross multiply
    7,475.64x = 10,315.92 × 4,331.28
  4. Step 4: Simplify right side
    7,475.64x = 44,681,137.98
  5. Step 5: Solve for x
    x = 44,681,137.98/7,475.64
  6. Step 6: Final answer
    x = 5,976.90

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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.