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Finding the Fourth Proportional to 3,099.47, 4,648.05 and 1,927.76

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Solution

The fourth proportional to 3,099.47, 4,648.05 and 1,927.76 is: 2,890.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.47 : 4,648.05 = 1,927.76 : x
  2. Step 2: Convert to fraction form
    3,099.47/4,648.05 = 1,927.76/x
  3. Step 3: Cross multiply
    3,099.47x = 4,648.05 × 1,927.76
  4. Step 4: Simplify right side
    3,099.47x = 8,960,301.63
  5. Step 5: Solve for x
    x = 8,960,301.63/3,099.47
  6. Step 6: Final answer
    x = 2,890.92

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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.