Home / 2,953.20-4,430.60-2,630.80

Finding the Fourth Proportional to 2,953.20, 4,430.60 and 2,630.80

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Solution

The fourth proportional to 2,953.20, 4,430.60 and 2,630.80 is: 3,946.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.20 : 4,430.60 = 2,630.80 : x
  2. Step 2: Convert to fraction form
    2,953.20/4,430.60 = 2,630.80/x
  3. Step 3: Cross multiply
    2,953.20x = 4,430.60 × 2,630.80
  4. Step 4: Simplify right side
    2,953.20x = 11,656,022.48
  5. Step 5: Solve for x
    x = 11,656,022.48/2,953.20
  6. Step 6: Final answer
    x = 3,946.91

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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.