Home / 5,347.08-7,378.09-2,989.31

Finding the Fourth Proportional to 5,347.08, 7,378.09 and 2,989.31

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Solution

The fourth proportional to 5,347.08, 7,378.09 and 2,989.31 is: 4,124.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.08 : 7,378.09 = 2,989.31 : x
  2. Step 2: Convert to fraction form
    5,347.08/7,378.09 = 2,989.31/x
  3. Step 3: Cross multiply
    5,347.08x = 7,378.09 × 2,989.31
  4. Step 4: Simplify right side
    5,347.08x = 22,055,353.85
  5. Step 5: Solve for x
    x = 22,055,353.85/5,347.08
  6. Step 6: Final answer
    x = 4,124.75

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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.