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Finding the Fourth Proportional to 1,779.01, 2,455.03 and 993.06

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Solution

The fourth proportional to 1,779.01, 2,455.03 and 993.06 is: 1,370.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.01 : 2,455.03 = 993.06 : x
  2. Step 2: Convert to fraction form
    1,779.01/2,455.03 = 993.06/x
  3. Step 3: Cross multiply
    1,779.01x = 2,455.03 × 993.06
  4. Step 4: Simplify right side
    1,779.01x = 2,437,992.09
  5. Step 5: Solve for x
    x = 2,437,992.09/1,779.01
  6. Step 6: Final answer
    x = 1,370.42

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1.5x scale

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.