Home / 1,395.24-1,924.58-1,023.72

Finding the Fourth Proportional to 1,395.24, 1,924.58 and 1,023.72

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Solution

The fourth proportional to 1,395.24, 1,924.58 and 1,023.72 is: 1,412.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.24 : 1,924.58 = 1,023.72 : x
  2. Step 2: Convert to fraction form
    1,395.24/1,924.58 = 1,023.72/x
  3. Step 3: Cross multiply
    1,395.24x = 1,924.58 × 1,023.72
  4. Step 4: Simplify right side
    1,395.24x = 1,970,231.04
  5. Step 5: Solve for x
    x = 1,970,231.04/1,395.24
  6. Step 6: Final answer
    x = 1,412.11

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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.