Home / 1,695.24-2,338.66-1,105.80

Finding the Fourth Proportional to 1,695.24, 2,338.66 and 1,105.80

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Solution

The fourth proportional to 1,695.24, 2,338.66 and 1,105.80 is: 1,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.24 : 2,338.66 = 1,105.80 : x
  2. Step 2: Convert to fraction form
    1,695.24/2,338.66 = 1,105.80/x
  3. Step 3: Cross multiply
    1,695.24x = 2,338.66 × 1,105.80
  4. Step 4: Simplify right side
    1,695.24x = 2,586,090.23
  5. Step 5: Solve for x
    x = 2,586,090.23/1,695.24
  6. Step 6: Final answer
    x = 1,525.50

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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.