Home / 1,881.24-2,597.29-1,209.35

Finding the Fourth Proportional to 1,881.24, 2,597.29 and 1,209.35

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Solution

The fourth proportional to 1,881.24, 2,597.29 and 1,209.35 is: 1,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.24 : 2,597.29 = 1,209.35 : x
  2. Step 2: Convert to fraction form
    1,881.24/2,597.29 = 1,209.35/x
  3. Step 3: Cross multiply
    1,881.24x = 2,597.29 × 1,209.35
  4. Step 4: Simplify right side
    1,881.24x = 3,141,032.66
  5. Step 5: Solve for x
    x = 3,141,032.66/1,881.24
  6. Step 6: Final answer
    x = 1,669.66

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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.