Home / 7,328.49-10,992.58-1,781.87

Finding the Fourth Proportional to 7,328.49, 10,992.58 and 1,781.87

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Solution

The fourth proportional to 7,328.49, 10,992.58 and 1,781.87 is: 2,672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.49 : 10,992.58 = 1,781.87 : x
  2. Step 2: Convert to fraction form
    7,328.49/10,992.58 = 1,781.87/x
  3. Step 3: Cross multiply
    7,328.49x = 10,992.58 × 1,781.87
  4. Step 4: Simplify right side
    7,328.49x = 19,587,348.52
  5. Step 5: Solve for x
    x = 19,587,348.52/7,328.49
  6. Step 6: Final answer
    x = 2,672.77

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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.