Home / 1,735.12-2,389.20-1,175.32

Finding the Fourth Proportional to 1,735.12, 2,389.20 and 1,175.32

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Solution

The fourth proportional to 1,735.12, 2,389.20 and 1,175.32 is: 1,618.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,735.12 : 2,389.20 = 1,175.32 : x
  2. Step 2: Convert to fraction form
    1,735.12/2,389.20 = 1,175.32/x
  3. Step 3: Cross multiply
    1,735.12x = 2,389.20 × 1,175.32
  4. Step 4: Simplify right side
    1,735.12x = 2,808,074.54
  5. Step 5: Solve for x
    x = 2,808,074.54/1,735.12
  6. Step 6: Final answer
    x = 1,618.37

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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.