Home / 7,124.45-10,686.96-1,930.32

Finding the Fourth Proportional to 7,124.45, 10,686.96 and 1,930.32

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Solution

The fourth proportional to 7,124.45, 10,686.96 and 1,930.32 is: 2,895.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.45 : 10,686.96 = 1,930.32 : x
  2. Step 2: Convert to fraction form
    7,124.45/10,686.96 = 1,930.32/x
  3. Step 3: Cross multiply
    7,124.45x = 10,686.96 × 1,930.32
  4. Step 4: Simplify right side
    7,124.45x = 20,629,252.63
  5. Step 5: Solve for x
    x = 20,629,252.63/7,124.45
  6. Step 6: Final answer
    x = 2,895.56

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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.