Home / 5,451.36-8,135.20-4,868.16

Finding the Fourth Proportional to 5,451.36, 8,135.20 and 4,868.16

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Solution

The fourth proportional to 5,451.36, 8,135.20 and 4,868.16 is: 7,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.36 : 8,135.20 = 4,868.16 : x
  2. Step 2: Convert to fraction form
    5,451.36/8,135.20 = 4,868.16/x
  3. Step 3: Cross multiply
    5,451.36x = 8,135.20 × 4,868.16
  4. Step 4: Simplify right side
    5,451.36x = 39,603,455.23
  5. Step 5: Solve for x
    x = 39,603,455.23/5,451.36
  6. Step 6: Final answer
    x = 7,264.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.