Home / 6,436.12-8,881.42-3,603.02

Finding the Fourth Proportional to 6,436.12, 8,881.42 and 3,603.02

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Solution

The fourth proportional to 6,436.12, 8,881.42 and 3,603.02 is: 4,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.12 : 8,881.42 = 3,603.02 : x
  2. Step 2: Convert to fraction form
    6,436.12/8,881.42 = 3,603.02/x
  3. Step 3: Cross multiply
    6,436.12x = 8,881.42 × 3,603.02
  4. Step 4: Simplify right side
    6,436.12x = 31,999,897.13
  5. Step 5: Solve for x
    x = 31,999,897.13/6,436.12
  6. Step 6: Final answer
    x = 4,971.92

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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.