Home / 1,823.60-2,516.10-1,105.40

Finding the Fourth Proportional to 1,823.60, 2,516.10 and 1,105.40

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Solution

The fourth proportional to 1,823.60, 2,516.10 and 1,105.40 is: 1,525.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,823.60 : 2,516.10 = 1,105.40 : x
  2. Step 2: Convert to fraction form
    1,823.60/2,516.10 = 1,105.40/x
  3. Step 3: Cross multiply
    1,823.60x = 2,516.10 × 1,105.40
  4. Step 4: Simplify right side
    1,823.60x = 2,781,296.94
  5. Step 5: Solve for x
    x = 2,781,296.94/1,823.60
  6. Step 6: Final answer
    x = 1,525.17

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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.