Home / 7,780.02-10,738.46-4,424.80

Finding the Fourth Proportional to 7,780.02, 10,738.46 and 4,424.80

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Solution

The fourth proportional to 7,780.02, 10,738.46 and 4,424.80 is: 6,107.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.02 : 10,738.46 = 4,424.80 : x
  2. Step 2: Convert to fraction form
    7,780.02/10,738.46 = 4,424.80/x
  3. Step 3: Cross multiply
    7,780.02x = 10,738.46 × 4,424.80
  4. Step 4: Simplify right side
    7,780.02x = 47,515,537.81
  5. Step 5: Solve for x
    x = 47,515,537.81/7,780.02
  6. Step 6: Final answer
    x = 6,107.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.