Home / 7,712.90-11,569.32-1,869.52

Finding the Fourth Proportional to 7,712.90, 11,569.32 and 1,869.52

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Solution

The fourth proportional to 7,712.90, 11,569.32 and 1,869.52 is: 2,804.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.90 : 11,569.32 = 1,869.52 : x
  2. Step 2: Convert to fraction form
    7,712.90/11,569.32 = 1,869.52/x
  3. Step 3: Cross multiply
    7,712.90x = 11,569.32 × 1,869.52
  4. Step 4: Simplify right side
    7,712.90x = 21,629,075.13
  5. Step 5: Solve for x
    x = 21,629,075.13/7,712.90
  6. Step 6: Final answer
    x = 2,804.27

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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.