Home / 2,129.03-2,938.11-1,184.89

Finding the Fourth Proportional to 2,129.03, 2,938.11 and 1,184.89

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Solution

The fourth proportional to 2,129.03, 2,938.11 and 1,184.89 is: 1,635.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.03 : 2,938.11 = 1,184.89 : x
  2. Step 2: Convert to fraction form
    2,129.03/2,938.11 = 1,184.89/x
  3. Step 3: Cross multiply
    2,129.03x = 2,938.11 × 1,184.89
  4. Step 4: Simplify right side
    2,129.03x = 3,481,322.47
  5. Step 5: Solve for x
    x = 3,481,322.47/2,129.03
  6. Step 6: Final answer
    x = 1,635.17

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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.