Home / 7,190.40-9,923.34-4,047.18

Finding the Fourth Proportional to 7,190.40, 9,923.34 and 4,047.18

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Solution

The fourth proportional to 7,190.40, 9,923.34 and 4,047.18 is: 5,585.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.40 : 9,923.34 = 4,047.18 : x
  2. Step 2: Convert to fraction form
    7,190.40/9,923.34 = 4,047.18/x
  3. Step 3: Cross multiply
    7,190.40x = 9,923.34 × 4,047.18
  4. Step 4: Simplify right side
    7,190.40x = 40,161,543.18
  5. Step 5: Solve for x
    x = 40,161,543.18/7,190.40
  6. Step 6: Final answer
    x = 5,585.44

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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.