Home / 3,615.36-5,422.40-1,018.28

Finding the Fourth Proportional to 3,615.36, 5,422.40 and 1,018.28

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Solution

The fourth proportional to 3,615.36, 5,422.40 and 1,018.28 is: 1,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.36 : 5,422.40 = 1,018.28 : x
  2. Step 2: Convert to fraction form
    3,615.36/5,422.40 = 1,018.28/x
  3. Step 3: Cross multiply
    3,615.36x = 5,422.40 × 1,018.28
  4. Step 4: Simplify right side
    3,615.36x = 5,521,521.47
  5. Step 5: Solve for x
    x = 5,521,521.47/3,615.36
  6. Step 6: Final answer
    x = 1,527.24

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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.