Home / 1,942.10-2,920.35-1,625.30

Finding the Fourth Proportional to 1,942.10, 2,920.35 and 1,625.30

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Solution

The fourth proportional to 1,942.10, 2,920.35 and 1,625.30 is: 2,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.10 : 2,920.35 = 1,625.30 : x
  2. Step 2: Convert to fraction form
    1,942.10/2,920.35 = 1,625.30/x
  3. Step 3: Cross multiply
    1,942.10x = 2,920.35 × 1,625.30
  4. Step 4: Simplify right side
    1,942.10x = 4,746,444.86
  5. Step 5: Solve for x
    x = 4,746,444.86/1,942.10
  6. Step 6: Final answer
    x = 2,443.98

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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.