Home / 7,860.07-11,788.80-2,312.77

Finding the Fourth Proportional to 7,860.07, 11,788.80 and 2,312.77

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Solution

The fourth proportional to 7,860.07, 11,788.80 and 2,312.77 is: 3,468.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.07 : 11,788.80 = 2,312.77 : x
  2. Step 2: Convert to fraction form
    7,860.07/11,788.80 = 2,312.77/x
  3. Step 3: Cross multiply
    7,860.07x = 11,788.80 × 2,312.77
  4. Step 4: Simplify right side
    7,860.07x = 27,264,782.98
  5. Step 5: Solve for x
    x = 27,264,782.98/7,860.07
  6. Step 6: Final answer
    x = 3,468.77

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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.