Home / 2,105,263.72-2,905,293.81-1,289,169.64

Finding the Fourth Proportional to 2,105,263.72, 2,905,293.81 and 1,289,169.64

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Solution

The fourth proportional to 2,105,263.72, 2,905,293.81 and 1,289,169.64 is: 1,779,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,263.72 : 2,905,293.81 = 1,289,169.64 : x
  2. Step 2: Convert to fraction form
    2,105,263.72/2,905,293.81 = 1,289,169.64/x
  3. Step 3: Cross multiply
    2,105,263.72x = 2,905,293.81 × 1,289,169.64
  4. Step 4: Simplify right side
    2,105,263.72x = 3,745,416,575,131.93
  5. Step 5: Solve for x
    x = 3,745,416,575,131.93/2,105,263.72
  6. Step 6: Final answer
    x = 1,779,072.40

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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.