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Finding the Fourth Proportional to 2,671.72, 3,985.49 and 2,360.68

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Solution

The fourth proportional to 2,671.72, 3,985.49 and 2,360.68 is: 3,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.72 : 3,985.49 = 2,360.68 : x
  2. Step 2: Convert to fraction form
    2,671.72/3,985.49 = 2,360.68/x
  3. Step 3: Cross multiply
    2,671.72x = 3,985.49 × 2,360.68
  4. Step 4: Simplify right side
    2,671.72x = 9,408,466.53
  5. Step 5: Solve for x
    x = 9,408,466.53/2,671.72
  6. Step 6: Final answer
    x = 3,521.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.