Home / 1,897.86-2,847.60-1,074.90

Finding the Fourth Proportional to 1,897.86, 2,847.60 and 1,074.90

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Solution

The fourth proportional to 1,897.86, 2,847.60 and 1,074.90 is: 1,612.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.86 : 2,847.60 = 1,074.90 : x
  2. Step 2: Convert to fraction form
    1,897.86/2,847.60 = 1,074.90/x
  3. Step 3: Cross multiply
    1,897.86x = 2,847.60 × 1,074.90
  4. Step 4: Simplify right side
    1,897.86x = 3,060,885.24
  5. Step 5: Solve for x
    x = 3,060,885.24/1,897.86
  6. Step 6: Final answer
    x = 1,612.81

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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.