Home / 2,923.72-4,030.55-1,803.91

Finding the Fourth Proportional to 2,923.72, 4,030.55 and 1,803.91

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Solution

The fourth proportional to 2,923.72, 4,030.55 and 1,803.91 is: 2,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.72 : 4,030.55 = 1,803.91 : x
  2. Step 2: Convert to fraction form
    2,923.72/4,030.55 = 1,803.91/x
  3. Step 3: Cross multiply
    2,923.72x = 4,030.55 × 1,803.91
  4. Step 4: Simplify right side
    2,923.72x = 7,270,749.45
  5. Step 5: Solve for x
    x = 7,270,749.45/2,923.72
  6. Step 6: Final answer
    x = 2,486.81

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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.