Home / 3,914.43-5,870.78-1,140.51

Finding the Fourth Proportional to 3,914.43, 5,870.78 and 1,140.51

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Solution

The fourth proportional to 3,914.43, 5,870.78 and 1,140.51 is: 1,710.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.43 : 5,870.78 = 1,140.51 : x
  2. Step 2: Convert to fraction form
    3,914.43/5,870.78 = 1,140.51/x
  3. Step 3: Cross multiply
    3,914.43x = 5,870.78 × 1,140.51
  4. Step 4: Simplify right side
    3,914.43x = 6,695,677.60
  5. Step 5: Solve for x
    x = 6,695,677.60/3,914.43
  6. Step 6: Final answer
    x = 1,710.51

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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.