Home / 1,856.16-2,561.58-1,227.06

Finding the Fourth Proportional to 1,856.16, 2,561.58 and 1,227.06

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Solution

The fourth proportional to 1,856.16, 2,561.58 and 1,227.06 is: 1,693.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.16 : 2,561.58 = 1,227.06 : x
  2. Step 2: Convert to fraction form
    1,856.16/2,561.58 = 1,227.06/x
  3. Step 3: Cross multiply
    1,856.16x = 2,561.58 × 1,227.06
  4. Step 4: Simplify right side
    1,856.16x = 3,143,212.35
  5. Step 5: Solve for x
    x = 3,143,212.35/1,856.16
  6. Step 6: Final answer
    x = 1,693.40

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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.