Home / 3,717.84-5,130.57-2,145.90

Finding the Fourth Proportional to 3,717.84, 5,130.57 and 2,145.90

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Solution

The fourth proportional to 3,717.84, 5,130.57 and 2,145.90 is: 2,961.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.84 : 5,130.57 = 2,145.90 : x
  2. Step 2: Convert to fraction form
    3,717.84/5,130.57 = 2,145.90/x
  3. Step 3: Cross multiply
    3,717.84x = 5,130.57 × 2,145.90
  4. Step 4: Simplify right side
    3,717.84x = 11,009,690.16
  5. Step 5: Solve for x
    x = 11,009,690.16/3,717.84
  6. Step 6: Final answer
    x = 2,961.31

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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.