Home / 1,353.36-2,037.42-923.28

Finding the Fourth Proportional to 1,353.36, 2,037.42 and 923.28

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Solution

The fourth proportional to 1,353.36, 2,037.42 and 923.28 is: 1,389.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.36 : 2,037.42 = 923.28 : x
  2. Step 2: Convert to fraction form
    1,353.36/2,037.42 = 923.28/x
  3. Step 3: Cross multiply
    1,353.36x = 2,037.42 × 923.28
  4. Step 4: Simplify right side
    1,353.36x = 1,881,109.14
  5. Step 5: Solve for x
    x = 1,881,109.14/1,353.36
  6. Step 6: Final answer
    x = 1,389.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.