Home / 5,347.56-7,379.65-2,990.26

Finding the Fourth Proportional to 5,347.56, 7,379.65 and 2,990.26

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Solution

The fourth proportional to 5,347.56, 7,379.65 and 2,990.26 is: 4,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.56 : 7,379.65 = 2,990.26 : x
  2. Step 2: Convert to fraction form
    5,347.56/7,379.65 = 2,990.26/x
  3. Step 3: Cross multiply
    5,347.56x = 7,379.65 × 2,990.26
  4. Step 4: Simplify right side
    5,347.56x = 22,067,072.21
  5. Step 5: Solve for x
    x = 22,067,072.21/5,347.56
  6. Step 6: Final answer
    x = 4,126.57

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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.