Home / 2,125.48-2,931.54-1,537.96

Finding the Fourth Proportional to 2,125.48, 2,931.54 and 1,537.96

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Solution

The fourth proportional to 2,125.48, 2,931.54 and 1,537.96 is: 2,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.48 : 2,931.54 = 1,537.96 : x
  2. Step 2: Convert to fraction form
    2,125.48/2,931.54 = 1,537.96/x
  3. Step 3: Cross multiply
    2,125.48x = 2,931.54 × 1,537.96
  4. Step 4: Simplify right side
    2,125.48x = 4,508,591.26
  5. Step 5: Solve for x
    x = 4,508,591.26/2,125.48
  6. Step 6: Final answer
    x = 2,121.21

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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.