Home / 1,709.24-2,357.83-1,143.05

Finding the Fourth Proportional to 1,709.24, 2,357.83 and 1,143.05

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Solution

The fourth proportional to 1,709.24, 2,357.83 and 1,143.05 is: 1,576.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.24 : 2,357.83 = 1,143.05 : x
  2. Step 2: Convert to fraction form
    1,709.24/2,357.83 = 1,143.05/x
  3. Step 3: Cross multiply
    1,709.24x = 2,357.83 × 1,143.05
  4. Step 4: Simplify right side
    1,709.24x = 2,695,117.58
  5. Step 5: Solve for x
    x = 2,695,117.58/1,709.24
  6. Step 6: Final answer
    x = 1,576.79

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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.