Home / 1,777.03-2,453.84-1,115.02

Finding the Fourth Proportional to 1,777.03, 2,453.84 and 1,115.02

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Solution

The fourth proportional to 1,777.03, 2,453.84 and 1,115.02 is: 1,539.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.03 : 2,453.84 = 1,115.02 : x
  2. Step 2: Convert to fraction form
    1,777.03/2,453.84 = 1,115.02/x
  3. Step 3: Cross multiply
    1,777.03x = 2,453.84 × 1,115.02
  4. Step 4: Simplify right side
    1,777.03x = 2,736,068.41
  5. Step 5: Solve for x
    x = 2,736,068.41/1,777.03
  6. Step 6: Final answer
    x = 1,539.69

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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.