Home / 3,525.14-5,287.29-928.28

Finding the Fourth Proportional to 3,525.14, 5,287.29 and 928.28

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Solution

The fourth proportional to 3,525.14, 5,287.29 and 928.28 is: 1,392.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,525.14 : 5,287.29 = 928.28 : x
  2. Step 2: Convert to fraction form
    3,525.14/5,287.29 = 928.28/x
  3. Step 3: Cross multiply
    3,525.14x = 5,287.29 × 928.28
  4. Step 4: Simplify right side
    3,525.14x = 4,908,085.56
  5. Step 5: Solve for x
    x = 4,908,085.56/3,525.14
  6. Step 6: Final answer
    x = 1,392.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.