Home / 1,685.38-2,324.37-1,095.70

Finding the Fourth Proportional to 1,685.38, 2,324.37 and 1,095.70

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Solution

The fourth proportional to 1,685.38, 2,324.37 and 1,095.70 is: 1,511.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.38 : 2,324.37 = 1,095.70 : x
  2. Step 2: Convert to fraction form
    1,685.38/2,324.37 = 1,095.70/x
  3. Step 3: Cross multiply
    1,685.38x = 2,324.37 × 1,095.70
  4. Step 4: Simplify right side
    1,685.38x = 2,546,812.21
  5. Step 5: Solve for x
    x = 2,546,812.21/1,685.38
  6. Step 6: Final answer
    x = 1,511.12

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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.