Home / 1,028.08-1,417.80-696.16

Finding the Fourth Proportional to 1,028.08, 1,417.80 and 696.16

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Solution

The fourth proportional to 1,028.08, 1,417.80 and 696.16 is: 960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.08 : 1,417.80 = 696.16 : x
  2. Step 2: Convert to fraction form
    1,028.08/1,417.80 = 696.16/x
  3. Step 3: Cross multiply
    1,028.08x = 1,417.80 × 696.16
  4. Step 4: Simplify right side
    1,028.08x = 987,015.65
  5. Step 5: Solve for x
    x = 987,015.65/1,028.08
  6. Step 6: Final answer
    x = 960.06

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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.