Home / 1,557.36-2,135.03-1,516.05

Finding the Fourth Proportional to 1,557.36, 2,135.03 and 1,516.05

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Solution

The fourth proportional to 1,557.36, 2,135.03 and 1,516.05 is: 2,078.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.36 : 2,135.03 = 1,516.05 : x
  2. Step 2: Convert to fraction form
    1,557.36/2,135.03 = 1,516.05/x
  3. Step 3: Cross multiply
    1,557.36x = 2,135.03 × 1,516.05
  4. Step 4: Simplify right side
    1,557.36x = 3,236,804.65
  5. Step 5: Solve for x
    x = 3,236,804.65/1,557.36
  6. Step 6: Final answer
    x = 2,078.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.