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Finding the Fourth Proportional to 6,422.13, 8,866.77 and 4,300.38

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Solution

The fourth proportional to 6,422.13, 8,866.77 and 4,300.38 is: 5,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.13 : 8,866.77 = 4,300.38 : x
  2. Step 2: Convert to fraction form
    6,422.13/8,866.77 = 4,300.38/x
  3. Step 3: Cross multiply
    6,422.13x = 8,866.77 × 4,300.38
  4. Step 4: Simplify right side
    6,422.13x = 38,130,480.37
  5. Step 5: Solve for x
    x = 38,130,480.37/6,422.13
  6. Step 6: Final answer
    x = 5,937.36

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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.