Home / 7,200.40-9,935.45-4,055.98

Finding the Fourth Proportional to 7,200.40, 9,935.45 and 4,055.98

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Solution

The fourth proportional to 7,200.40, 9,935.45 and 4,055.98 is: 5,596.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.40 : 9,935.45 = 4,055.98 : x
  2. Step 2: Convert to fraction form
    7,200.40/9,935.45 = 4,055.98/x
  3. Step 3: Cross multiply
    7,200.40x = 9,935.45 × 4,055.98
  4. Step 4: Simplify right side
    7,200.40x = 40,297,986.49
  5. Step 5: Solve for x
    x = 40,297,986.49/7,200.40
  6. Step 6: Final answer
    x = 5,596.63

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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.