Home / 7,860.51-11,790.77-2,666.25

Finding the Fourth Proportional to 7,860.51, 11,790.77 and 2,666.25

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Solution

The fourth proportional to 7,860.51, 11,790.77 and 2,666.25 is: 3,999.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.51 : 11,790.77 = 2,666.25 : x
  2. Step 2: Convert to fraction form
    7,860.51/11,790.77 = 2,666.25/x
  3. Step 3: Cross multiply
    7,860.51x = 11,790.77 × 2,666.25
  4. Step 4: Simplify right side
    7,860.51x = 31,437,127.18
  5. Step 5: Solve for x
    x = 31,437,127.18/7,860.51
  6. Step 6: Final answer
    x = 3,999.38

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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.