Home / 7,124.41-10,686.62-1,930.29

Finding the Fourth Proportional to 7,124.41, 10,686.62 and 1,930.29

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Solution

The fourth proportional to 7,124.41, 10,686.62 and 1,930.29 is: 2,895.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.41 : 10,686.62 = 1,930.29 : x
  2. Step 2: Convert to fraction form
    7,124.41/10,686.62 = 1,930.29/x
  3. Step 3: Cross multiply
    7,124.41x = 10,686.62 × 1,930.29
  4. Step 4: Simplify right side
    7,124.41x = 20,628,267.81
  5. Step 5: Solve for x
    x = 20,628,267.81/7,124.41
  6. Step 6: Final answer
    x = 2,895.43

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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.