Home / 7,790.09-10,755.47-4,810.30

Finding the Fourth Proportional to 7,790.09, 10,755.47 and 4,810.30

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Solution

The fourth proportional to 7,790.09, 10,755.47 and 4,810.30 is: 6,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.09 : 10,755.47 = 4,810.30 : x
  2. Step 2: Convert to fraction form
    7,790.09/10,755.47 = 4,810.30/x
  3. Step 3: Cross multiply
    7,790.09x = 10,755.47 × 4,810.30
  4. Step 4: Simplify right side
    7,790.09x = 51,737,022.48
  5. Step 5: Solve for x
    x = 51,737,022.48/7,790.09
  6. Step 6: Final answer
    x = 6,641.39

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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.