Home / 1,836.79-2,533.93-1,387.85

Finding the Fourth Proportional to 1,836.79, 2,533.93 and 1,387.85

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Solution

The fourth proportional to 1,836.79, 2,533.93 and 1,387.85 is: 1,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836.79 : 2,533.93 = 1,387.85 : x
  2. Step 2: Convert to fraction form
    1,836.79/2,533.93 = 1,387.85/x
  3. Step 3: Cross multiply
    1,836.79x = 2,533.93 × 1,387.85
  4. Step 4: Simplify right side
    1,836.79x = 3,516,720.67
  5. Step 5: Solve for x
    x = 3,516,720.67/1,836.79
  6. Step 6: Final answer
    x = 1,914.60

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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.