Home / 7,405.22-10,219.28-4,047.98

Finding the Fourth Proportional to 7,405.22, 10,219.28 and 4,047.98

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Solution

The fourth proportional to 7,405.22, 10,219.28 and 4,047.98 is: 5,586.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.22 : 10,219.28 = 4,047.98 : x
  2. Step 2: Convert to fraction form
    7,405.22/10,219.28 = 4,047.98/x
  3. Step 3: Cross multiply
    7,405.22x = 10,219.28 × 4,047.98
  4. Step 4: Simplify right side
    7,405.22x = 41,367,369.72
  5. Step 5: Solve for x
    x = 41,367,369.72/7,405.22
  6. Step 6: Final answer
    x = 5,586.24

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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.