Home / 1,712.09-2,362.68-926.15

Finding the Fourth Proportional to 1,712.09, 2,362.68 and 926.15

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Solution

The fourth proportional to 1,712.09, 2,362.68 and 926.15 is: 1,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.09 : 2,362.68 = 926.15 : x
  2. Step 2: Convert to fraction form
    1,712.09/2,362.68 = 926.15/x
  3. Step 3: Cross multiply
    1,712.09x = 2,362.68 × 926.15
  4. Step 4: Simplify right side
    1,712.09x = 2,188,196.08
  5. Step 5: Solve for x
    x = 2,188,196.08/1,712.09
  6. Step 6: Final answer
    x = 1,278.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.