Home / 1,525.05-2,105.73-1,340.73

Finding the Fourth Proportional to 1,525.05, 2,105.73 and 1,340.73

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Solution

The fourth proportional to 1,525.05, 2,105.73 and 1,340.73 is: 1,851.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.05 : 2,105.73 = 1,340.73 : x
  2. Step 2: Convert to fraction form
    1,525.05/2,105.73 = 1,340.73/x
  3. Step 3: Cross multiply
    1,525.05x = 2,105.73 × 1,340.73
  4. Step 4: Simplify right side
    1,525.05x = 2,823,215.38
  5. Step 5: Solve for x
    x = 2,823,215.38/1,525.05
  6. Step 6: Final answer
    x = 1,851.23

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Half scale
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Double scale
Find fourth proportional to 1,526.05, 2,107.11 and 1,341.73
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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.