Home / 7,323.19-10,985.27-2,578.78

Finding the Fourth Proportional to 7,323.19, 10,985.27 and 2,578.78

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Solution

The fourth proportional to 7,323.19, 10,985.27 and 2,578.78 is: 3,868.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,323.19 : 10,985.27 = 2,578.78 : x
  2. Step 2: Convert to fraction form
    7,323.19/10,985.27 = 2,578.78/x
  3. Step 3: Cross multiply
    7,323.19x = 10,985.27 × 2,578.78
  4. Step 4: Simplify right side
    7,323.19x = 28,328,594.57
  5. Step 5: Solve for x
    x = 28,328,594.57/7,323.19
  6. Step 6: Final answer
    x = 3,868.34

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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.