Home / 4,918.48-7,378.20-1,630.80

Finding the Fourth Proportional to 4,918.48, 7,378.20 and 1,630.80

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Solution

The fourth proportional to 4,918.48, 7,378.20 and 1,630.80 is: 2,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.48 : 7,378.20 = 1,630.80 : x
  2. Step 2: Convert to fraction form
    4,918.48/7,378.20 = 1,630.80/x
  3. Step 3: Cross multiply
    4,918.48x = 7,378.20 × 1,630.80
  4. Step 4: Simplify right side
    4,918.48x = 12,032,368.56
  5. Step 5: Solve for x
    x = 12,032,368.56/4,918.48
  6. Step 6: Final answer
    x = 2,446.36

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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.