Home / 7,144.08-9,858.92-4,118.50

Finding the Fourth Proportional to 7,144.08, 9,858.92 and 4,118.50

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Solution

The fourth proportional to 7,144.08, 9,858.92 and 4,118.50 is: 5,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.08 : 9,858.92 = 4,118.50 : x
  2. Step 2: Convert to fraction form
    7,144.08/9,858.92 = 4,118.50/x
  3. Step 3: Cross multiply
    7,144.08x = 9,858.92 × 4,118.50
  4. Step 4: Simplify right side
    7,144.08x = 40,603,962.02
  5. Step 5: Solve for x
    x = 40,603,962.02/7,144.08
  6. Step 6: Final answer
    x = 5,683.58

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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.