Home / 4,415.17-6,622.75-1,128.26

Finding the Fourth Proportional to 4,415.17, 6,622.75 and 1,128.26

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Solution

The fourth proportional to 4,415.17, 6,622.75 and 1,128.26 is: 1,692.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.17 : 6,622.75 = 1,128.26 : x
  2. Step 2: Convert to fraction form
    4,415.17/6,622.75 = 1,128.26/x
  3. Step 3: Cross multiply
    4,415.17x = 6,622.75 × 1,128.26
  4. Step 4: Simplify right side
    4,415.17x = 7,472,196.42
  5. Step 5: Solve for x
    x = 7,472,196.42/4,415.17
  6. Step 6: Final answer
    x = 1,692.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.