Home / 1,943.19-2,914.31-556.54

Finding the Fourth Proportional to 1,943.19, 2,914.31 and 556.54

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Solution

The fourth proportional to 1,943.19, 2,914.31 and 556.54 is: 834.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.19 : 2,914.31 = 556.54 : x
  2. Step 2: Convert to fraction form
    1,943.19/2,914.31 = 556.54/x
  3. Step 3: Cross multiply
    1,943.19x = 2,914.31 × 556.54
  4. Step 4: Simplify right side
    1,943.19x = 1,621,920.02
  5. Step 5: Solve for x
    x = 1,621,920.02/1,943.19
  6. Step 6: Final answer
    x = 834.67

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1.5x scale

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.