Home / 1,905.16-2,856.06-1,254.52

Finding the Fourth Proportional to 1,905.16, 2,856.06 and 1,254.52

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Solution

The fourth proportional to 1,905.16, 2,856.06 and 1,254.52 is: 1,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.16 : 2,856.06 = 1,254.52 : x
  2. Step 2: Convert to fraction form
    1,905.16/2,856.06 = 1,254.52/x
  3. Step 3: Cross multiply
    1,905.16x = 2,856.06 × 1,254.52
  4. Step 4: Simplify right side
    1,905.16x = 3,582,984.39
  5. Step 5: Solve for x
    x = 3,582,984.39/1,905.16
  6. Step 6: Final answer
    x = 1,880.67

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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.