Home / 4,869.20-7,308.60-2,406.80

Finding the Fourth Proportional to 4,869.20, 7,308.60 and 2,406.80

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Solution

The fourth proportional to 4,869.20, 7,308.60 and 2,406.80 is: 3,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.20 : 7,308.60 = 2,406.80 : x
  2. Step 2: Convert to fraction form
    4,869.20/7,308.60 = 2,406.80/x
  3. Step 3: Cross multiply
    4,869.20x = 7,308.60 × 2,406.80
  4. Step 4: Simplify right side
    4,869.20x = 17,590,338.48
  5. Step 5: Solve for x
    x = 17,590,338.48/4,869.20
  6. Step 6: Final answer
    x = 3,612.57

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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.