Home / 5,148.40-7,722.60-4,946.80

Finding the Fourth Proportional to 5,148.40, 7,722.60 and 4,946.80

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Solution

The fourth proportional to 5,148.40, 7,722.60 and 4,946.80 is: 7,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.40 : 7,722.60 = 4,946.80 : x
  2. Step 2: Convert to fraction form
    5,148.40/7,722.60 = 4,946.80/x
  3. Step 3: Cross multiply
    5,148.40x = 7,722.60 × 4,946.80
  4. Step 4: Simplify right side
    5,148.40x = 38,202,157.68
  5. Step 5: Solve for x
    x = 38,202,157.68/5,148.40
  6. Step 6: Final answer
    x = 7,420.20

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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.