Home / 1,905.60-2,628.91-1,346.55

Finding the Fourth Proportional to 1,905.60, 2,628.91 and 1,346.55

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Solution

The fourth proportional to 1,905.60, 2,628.91 and 1,346.55 is: 1,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.60 : 2,628.91 = 1,346.55 : x
  2. Step 2: Convert to fraction form
    1,905.60/2,628.91 = 1,346.55/x
  3. Step 3: Cross multiply
    1,905.60x = 2,628.91 × 1,346.55
  4. Step 4: Simplify right side
    1,905.60x = 3,539,950.40
  5. Step 5: Solve for x
    x = 3,539,950.40/1,905.60
  6. Step 6: Final answer
    x = 1,857.66

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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.