Home / 5,100.28-7,045.32-3,995.32

Finding the Fourth Proportional to 5,100.28, 7,045.32 and 3,995.32

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Solution

The fourth proportional to 5,100.28, 7,045.32 and 3,995.32 is: 5,518.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.28 : 7,045.32 = 3,995.32 : x
  2. Step 2: Convert to fraction form
    5,100.28/7,045.32 = 3,995.32/x
  3. Step 3: Cross multiply
    5,100.28x = 7,045.32 × 3,995.32
  4. Step 4: Simplify right side
    5,100.28x = 28,148,307.90
  5. Step 5: Solve for x
    x = 28,148,307.90/5,100.28
  6. Step 6: Final answer
    x = 5,518.97

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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.