Home / 2,892,700.21-3,991,657.87-1,603,430.91

Finding the Fourth Proportional to 2,892,700.21, 3,991,657.87 and 1,603,430.91

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Solution

The fourth proportional to 2,892,700.21, 3,991,657.87 and 1,603,430.91 is: 2,212,585.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892,700.21 : 3,991,657.87 = 1,603,430.91 : x
  2. Step 2: Convert to fraction form
    2,892,700.21/3,991,657.87 = 1,603,430.91/x
  3. Step 3: Cross multiply
    2,892,700.21x = 3,991,657.87 × 1,603,430.91
  4. Step 4: Simplify right side
    2,892,700.21x = 6,400,347,610,902.76
  5. Step 5: Solve for x
    x = 6,400,347,610,902.76/2,892,700.21
  6. Step 6: Final answer
    x = 2,212,585.87

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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.