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Finding the Fourth Proportional to 2,735.91, 3,774.91 and 1,557.63

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Solution

The fourth proportional to 2,735.91, 3,774.91 and 1,557.63 is: 2,149.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,735.91 : 3,774.91 = 1,557.63 : x
  2. Step 2: Convert to fraction form
    2,735.91/3,774.91 = 1,557.63/x
  3. Step 3: Cross multiply
    2,735.91x = 3,774.91 × 1,557.63
  4. Step 4: Simplify right side
    2,735.91x = 5,879,913.06
  5. Step 5: Solve for x
    x = 5,879,913.06/2,735.91
  6. Step 6: Final answer
    x = 2,149.16

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1.5x scale

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.