Home / 1,858.55-2,565.78-1,299.49

Finding the Fourth Proportional to 1,858.55, 2,565.78 and 1,299.49

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Solution

The fourth proportional to 1,858.55, 2,565.78 and 1,299.49 is: 1,793.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.55 : 2,565.78 = 1,299.49 : x
  2. Step 2: Convert to fraction form
    1,858.55/2,565.78 = 1,299.49/x
  3. Step 3: Cross multiply
    1,858.55x = 2,565.78 × 1,299.49
  4. Step 4: Simplify right side
    1,858.55x = 3,334,208.60
  5. Step 5: Solve for x
    x = 3,334,208.60/1,858.55
  6. Step 6: Final answer
    x = 1,793.99

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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.