Home / 1,932.21-2,666.25-1,146.11

Finding the Fourth Proportional to 1,932.21, 2,666.25 and 1,146.11

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Solution

The fourth proportional to 1,932.21, 2,666.25 and 1,146.11 is: 1,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.21 : 2,666.25 = 1,146.11 : x
  2. Step 2: Convert to fraction form
    1,932.21/2,666.25 = 1,146.11/x
  3. Step 3: Cross multiply
    1,932.21x = 2,666.25 × 1,146.11
  4. Step 4: Simplify right side
    1,932.21x = 3,055,802.46
  5. Step 5: Solve for x
    x = 3,055,802.46/1,932.21
  6. Step 6: Final answer
    x = 1,581.51

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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.