Home / 1,555.93-2,147.48-1,226.94

Finding the Fourth Proportional to 1,555.93, 2,147.48 and 1,226.94

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Solution

The fourth proportional to 1,555.93, 2,147.48 and 1,226.94 is: 1,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.93 : 2,147.48 = 1,226.94 : x
  2. Step 2: Convert to fraction form
    1,555.93/2,147.48 = 1,226.94/x
  3. Step 3: Cross multiply
    1,555.93x = 2,147.48 × 1,226.94
  4. Step 4: Simplify right side
    1,555.93x = 2,634,829.11
  5. Step 5: Solve for x
    x = 2,634,829.11/1,555.93
  6. Step 6: Final answer
    x = 1,693.41

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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.