Home / 1,509.36-2,082.60-1,037.68

Finding the Fourth Proportional to 1,509.36, 2,082.60 and 1,037.68

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Solution

The fourth proportional to 1,509.36, 2,082.60 and 1,037.68 is: 1,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.36 : 2,082.60 = 1,037.68 : x
  2. Step 2: Convert to fraction form
    1,509.36/2,082.60 = 1,037.68/x
  3. Step 3: Cross multiply
    1,509.36x = 2,082.60 × 1,037.68
  4. Step 4: Simplify right side
    1,509.36x = 2,161,072.37
  5. Step 5: Solve for x
    x = 2,161,072.37/1,509.36
  6. Step 6: Final answer
    x = 1,431.78

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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.