Home / 2,892,342.40-4,334,366.40-2,128,220.80

Finding the Fourth Proportional to 2,892,342.40, 4,334,366.40 and 2,128,220.80

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Solution

The fourth proportional to 2,892,342.40, 4,334,366.40 and 2,128,220.80 is: 3,189,279.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892,342.40 : 4,334,366.40 = 2,128,220.80 : x
  2. Step 2: Convert to fraction form
    2,892,342.40/4,334,366.40 = 2,128,220.80/x
  3. Step 3: Cross multiply
    2,892,342.40x = 4,334,366.40 × 2,128,220.80
  4. Step 4: Simplify right side
    2,892,342.40x = 9,224,488,727,301.12
  5. Step 5: Solve for x
    x = 9,224,488,727,301.12/2,892,342.40
  6. Step 6: Final answer
    x = 3,189,279.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.