Home / 1,885.24-2,600.40-1,222.93

Finding the Fourth Proportional to 1,885.24, 2,600.40 and 1,222.93

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Solution

The fourth proportional to 1,885.24, 2,600.40 and 1,222.93 is: 1,686.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.24 : 2,600.40 = 1,222.93 : x
  2. Step 2: Convert to fraction form
    1,885.24/2,600.40 = 1,222.93/x
  3. Step 3: Cross multiply
    1,885.24x = 2,600.40 × 1,222.93
  4. Step 4: Simplify right side
    1,885.24x = 3,180,107.17
  5. Step 5: Solve for x
    x = 3,180,107.17/1,885.24
  6. Step 6: Final answer
    x = 1,686.84

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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.