Home / 3,617,374.36-4,991,661.92-1,985,779.40

Finding the Fourth Proportional to 3,617,374.36, 4,991,661.92 and 1,985,779.40

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Solution

The fourth proportional to 3,617,374.36, 4,991,661.92 and 1,985,779.40 is: 2,740,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617,374.36 : 4,991,661.92 = 1,985,779.40 : x
  2. Step 2: Convert to fraction form
    3,617,374.36/4,991,661.92 = 1,985,779.40/x
  3. Step 3: Cross multiply
    3,617,374.36x = 4,991,661.92 × 1,985,779.40
  4. Step 4: Simplify right side
    3,617,374.36x = 9,912,339,412,500.45
  5. Step 5: Solve for x
    x = 9,912,339,412,500.45/3,617,374.36
  6. Step 6: Final answer
    x = 2,740,202.82

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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.