Home / 7,970.90-11,957.72-2,424.80

Finding the Fourth Proportional to 7,970.90, 11,957.72 and 2,424.80

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Solution

The fourth proportional to 7,970.90, 11,957.72 and 2,424.80 is: 3,637.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.90 : 11,957.72 = 2,424.80 : x
  2. Step 2: Convert to fraction form
    7,970.90/11,957.72 = 2,424.80/x
  3. Step 3: Cross multiply
    7,970.90x = 11,957.72 × 2,424.80
  4. Step 4: Simplify right side
    7,970.90x = 28,995,007.54
  5. Step 5: Solve for x
    x = 28,995,007.54/7,970.90
  6. Step 6: Final answer
    x = 3,637.61

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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.