Home / 4,946.90-7,420.35-3,291.80

Finding the Fourth Proportional to 4,946.90, 7,420.35 and 3,291.80

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Solution

The fourth proportional to 4,946.90, 7,420.35 and 3,291.80 is: 4,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,946.90 : 7,420.35 = 3,291.80 : x
  2. Step 2: Convert to fraction form
    4,946.90/7,420.35 = 3,291.80/x
  3. Step 3: Cross multiply
    4,946.90x = 7,420.35 × 3,291.80
  4. Step 4: Simplify right side
    4,946.90x = 24,426,308.13
  5. Step 5: Solve for x
    x = 24,426,308.13/4,946.90
  6. Step 6: Final answer
    x = 4,937.70

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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.