Home / 1,537.37-2,124.43-1,257.48

Finding the Fourth Proportional to 1,537.37, 2,124.43 and 1,257.48

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Solution

The fourth proportional to 1,537.37, 2,124.43 and 1,257.48 is: 1,737.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537.37 : 2,124.43 = 1,257.48 : x
  2. Step 2: Convert to fraction form
    1,537.37/2,124.43 = 1,257.48/x
  3. Step 3: Cross multiply
    1,537.37x = 2,124.43 × 1,257.48
  4. Step 4: Simplify right side
    1,537.37x = 2,671,428.24
  5. Step 5: Solve for x
    x = 2,671,428.24/1,537.37
  6. Step 6: Final answer
    x = 1,737.66

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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.