Home / 5,309.21-7,326.55-3,071.18

Finding the Fourth Proportional to 5,309.21, 7,326.55 and 3,071.18

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Solution

The fourth proportional to 5,309.21, 7,326.55 and 3,071.18 is: 4,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.21 : 7,326.55 = 3,071.18 : x
  2. Step 2: Convert to fraction form
    5,309.21/7,326.55 = 3,071.18/x
  3. Step 3: Cross multiply
    5,309.21x = 7,326.55 × 3,071.18
  4. Step 4: Simplify right side
    5,309.21x = 22,501,153.83
  5. Step 5: Solve for x
    x = 22,501,153.83/5,309.21
  6. Step 6: Final answer
    x = 4,238.14

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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.