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Finding the Fourth Proportional to 1,925.91, 2,888.87 and 1,103.63

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Solution

The fourth proportional to 1,925.91, 2,888.87 and 1,103.63 is: 1,655.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.91 : 2,888.87 = 1,103.63 : x
  2. Step 2: Convert to fraction form
    1,925.91/2,888.87 = 1,103.63/x
  3. Step 3: Cross multiply
    1,925.91x = 2,888.87 × 1,103.63
  4. Step 4: Simplify right side
    1,925.91x = 3,188,223.64
  5. Step 5: Solve for x
    x = 3,188,223.64/1,925.91
  6. Step 6: Final answer
    x = 1,655.44

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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.