Home / 5,347.45-7,379.63-2,989.58

Finding the Fourth Proportional to 5,347.45, 7,379.63 and 2,989.58

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Solution

The fourth proportional to 5,347.45, 7,379.63 and 2,989.58 is: 4,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.45 : 7,379.63 = 2,989.58 : x
  2. Step 2: Convert to fraction form
    5,347.45/7,379.63 = 2,989.58/x
  3. Step 3: Cross multiply
    5,347.45x = 7,379.63 × 2,989.58
  4. Step 4: Simplify right side
    5,347.45x = 22,061,979.31
  5. Step 5: Solve for x
    x = 22,061,979.31/5,347.45
  6. Step 6: Final answer
    x = 4,125.70

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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.