Home / 2,077.32-2,865.87-1,911.54

Finding the Fourth Proportional to 2,077.32, 2,865.87 and 1,911.54

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Solution

The fourth proportional to 2,077.32, 2,865.87 and 1,911.54 is: 2,637.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.32 : 2,865.87 = 1,911.54 : x
  2. Step 2: Convert to fraction form
    2,077.32/2,865.87 = 1,911.54/x
  3. Step 3: Cross multiply
    2,077.32x = 2,865.87 × 1,911.54
  4. Step 4: Simplify right side
    2,077.32x = 5,478,225.14
  5. Step 5: Solve for x
    x = 5,478,225.14/2,077.32
  6. Step 6: Final answer
    x = 2,637.16

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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.