Home / 1,874.64-2,586.94-1,077.86

Finding the Fourth Proportional to 1,874.64, 2,586.94 and 1,077.86

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Solution

The fourth proportional to 1,874.64, 2,586.94 and 1,077.86 is: 1,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.64 : 2,586.94 = 1,077.86 : x
  2. Step 2: Convert to fraction form
    1,874.64/2,586.94 = 1,077.86/x
  3. Step 3: Cross multiply
    1,874.64x = 2,586.94 × 1,077.86
  4. Step 4: Simplify right side
    1,874.64x = 2,788,348.37
  5. Step 5: Solve for x
    x = 2,788,348.37/1,874.64
  6. Step 6: Final answer
    x = 1,487.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.