Home / 4,415.37-6,623.06-1,128.47

Finding the Fourth Proportional to 4,415.37, 6,623.06 and 1,128.47

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Solution

The fourth proportional to 4,415.37, 6,623.06 and 1,128.47 is: 1,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.37 : 6,623.06 = 1,128.47 : x
  2. Step 2: Convert to fraction form
    4,415.37/6,623.06 = 1,128.47/x
  3. Step 3: Cross multiply
    4,415.37x = 6,623.06 × 1,128.47
  4. Step 4: Simplify right side
    4,415.37x = 7,473,887.17
  5. Step 5: Solve for x
    x = 7,473,887.17/4,415.37
  6. Step 6: Final answer
    x = 1,692.70

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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.