Home / 2,923.12-4,035.72-1,861.48

Finding the Fourth Proportional to 2,923.12, 4,035.72 and 1,861.48

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Solution

The fourth proportional to 2,923.12, 4,035.72 and 1,861.48 is: 2,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.12 : 4,035.72 = 1,861.48 : x
  2. Step 2: Convert to fraction form
    2,923.12/4,035.72 = 1,861.48/x
  3. Step 3: Cross multiply
    2,923.12x = 4,035.72 × 1,861.48
  4. Step 4: Simplify right side
    2,923.12x = 7,512,412.07
  5. Step 5: Solve for x
    x = 7,512,412.07/2,923.12
  6. Step 6: Final answer
    x = 2,570.00

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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.