Home / 7,780.02-10,736.22-4,243.23

Finding the Fourth Proportional to 7,780.02, 10,736.22 and 4,243.23

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Solution

The fourth proportional to 7,780.02, 10,736.22 and 4,243.23 is: 5,855.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.02 : 10,736.22 = 4,243.23 : x
  2. Step 2: Convert to fraction form
    7,780.02/10,736.22 = 4,243.23/x
  3. Step 3: Cross multiply
    7,780.02x = 10,736.22 × 4,243.23
  4. Step 4: Simplify right side
    7,780.02x = 45,556,250.79
  5. Step 5: Solve for x
    x = 45,556,250.79/7,780.02
  6. Step 6: Final answer
    x = 5,855.54

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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.