Home / 1,771.74-2,445.80-1,276.83

Finding the Fourth Proportional to 1,771.74, 2,445.80 and 1,276.83

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Solution

The fourth proportional to 1,771.74, 2,445.80 and 1,276.83 is: 1,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.74 : 2,445.80 = 1,276.83 : x
  2. Step 2: Convert to fraction form
    1,771.74/2,445.80 = 1,276.83/x
  3. Step 3: Cross multiply
    1,771.74x = 2,445.80 × 1,276.83
  4. Step 4: Simplify right side
    1,771.74x = 3,122,864.43
  5. Step 5: Solve for x
    x = 3,122,864.43/1,771.74
  6. Step 6: Final answer
    x = 1,762.60

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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.