Home / 7,222.08-9,966.24-4,077.60

Finding the Fourth Proportional to 7,222.08, 9,966.24 and 4,077.60

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Solution

The fourth proportional to 7,222.08, 9,966.24 and 4,077.60 is: 5,626.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.08 : 9,966.24 = 4,077.60 : x
  2. Step 2: Convert to fraction form
    7,222.08/9,966.24 = 4,077.60/x
  3. Step 3: Cross multiply
    7,222.08x = 9,966.24 × 4,077.60
  4. Step 4: Simplify right side
    7,222.08x = 40,638,340.22
  5. Step 5: Solve for x
    x = 40,638,340.22/7,222.08
  6. Step 6: Final answer
    x = 5,626.96

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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.