Home / 1,788.37-2,465.65-1,157.78

Finding the Fourth Proportional to 1,788.37, 2,465.65 and 1,157.78

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Solution

The fourth proportional to 1,788.37, 2,465.65 and 1,157.78 is: 1,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.37 : 2,465.65 = 1,157.78 : x
  2. Step 2: Convert to fraction form
    1,788.37/2,465.65 = 1,157.78/x
  3. Step 3: Cross multiply
    1,788.37x = 2,465.65 × 1,157.78
  4. Step 4: Simplify right side
    1,788.37x = 2,854,680.26
  5. Step 5: Solve for x
    x = 2,854,680.26/1,788.37
  6. Step 6: Final answer
    x = 1,596.25

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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.