Home / 1,705.09-2,353.41-1,042.30

Finding the Fourth Proportional to 1,705.09, 2,353.41 and 1,042.30

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Solution

The fourth proportional to 1,705.09, 2,353.41 and 1,042.30 is: 1,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.09 : 2,353.41 = 1,042.30 : x
  2. Step 2: Convert to fraction form
    1,705.09/2,353.41 = 1,042.30/x
  3. Step 3: Cross multiply
    1,705.09x = 2,353.41 × 1,042.30
  4. Step 4: Simplify right side
    1,705.09x = 2,452,959.24
  5. Step 5: Solve for x
    x = 2,452,959.24/1,705.09
  6. Step 6: Final answer
    x = 1,438.61

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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.