Home / 2,890,388.40-4,331,435.40-2,126,266.80

Finding the Fourth Proportional to 2,890,388.40, 4,331,435.40 and 2,126,266.80

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Solution

The fourth proportional to 2,890,388.40, 4,331,435.40 and 2,126,266.80 is: 3,186,349.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,388.40 : 4,331,435.40 = 2,126,266.80 : x
  2. Step 2: Convert to fraction form
    2,890,388.40/4,331,435.40 = 2,126,266.80/x
  3. Step 3: Cross multiply
    2,890,388.40x = 4,331,435.40 × 2,126,266.80
  4. Step 4: Simplify right side
    2,890,388.40x = 9,209,787,287,364.72
  5. Step 5: Solve for x
    x = 9,209,787,287,364.72/2,890,388.40
  6. Step 6: Final answer
    x = 3,186,349.38

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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.