Home / 2,620.16-3,931.80-1,160.48

Finding the Fourth Proportional to 2,620.16, 3,931.80 and 1,160.48

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Solution

The fourth proportional to 2,620.16, 3,931.80 and 1,160.48 is: 1,741.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.16 : 3,931.80 = 1,160.48 : x
  2. Step 2: Convert to fraction form
    2,620.16/3,931.80 = 1,160.48/x
  3. Step 3: Cross multiply
    2,620.16x = 3,931.80 × 1,160.48
  4. Step 4: Simplify right side
    2,620.16x = 4,562,775.26
  5. Step 5: Solve for x
    x = 4,562,775.26/2,620.16
  6. Step 6: Final answer
    x = 1,741.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.