Home / 4,702.21-6,486.75-3,955.89

Finding the Fourth Proportional to 4,702.21, 6,486.75 and 3,955.89

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Solution

The fourth proportional to 4,702.21, 6,486.75 and 3,955.89 is: 5,457.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.21 : 6,486.75 = 3,955.89 : x
  2. Step 2: Convert to fraction form
    4,702.21/6,486.75 = 3,955.89/x
  3. Step 3: Cross multiply
    4,702.21x = 6,486.75 × 3,955.89
  4. Step 4: Simplify right side
    4,702.21x = 25,660,893.78
  5. Step 5: Solve for x
    x = 25,660,893.78/4,702.21
  6. Step 6: Final answer
    x = 5,457.20

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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.