Home / 1,914.18-2,640.75-1,417.98

Finding the Fourth Proportional to 1,914.18, 2,640.75 and 1,417.98

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Solution

The fourth proportional to 1,914.18, 2,640.75 and 1,417.98 is: 1,956.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.18 : 2,640.75 = 1,417.98 : x
  2. Step 2: Convert to fraction form
    1,914.18/2,640.75 = 1,417.98/x
  3. Step 3: Cross multiply
    1,914.18x = 2,640.75 × 1,417.98
  4. Step 4: Simplify right side
    1,914.18x = 3,744,530.69
  5. Step 5: Solve for x
    x = 3,744,530.69/1,914.18
  6. Step 6: Final answer
    x = 1,956.21

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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.