Home / 2,190,138.09-3,280,624.47-1,761,356.13

Finding the Fourth Proportional to 2,190,138.09, 3,280,624.47 and 1,761,356.13

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Solution

The fourth proportional to 2,190,138.09, 3,280,624.47 and 1,761,356.13 is: 2,638,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,138.09 : 3,280,624.47 = 1,761,356.13 : x
  2. Step 2: Convert to fraction form
    2,190,138.09/3,280,624.47 = 1,761,356.13/x
  3. Step 3: Cross multiply
    2,190,138.09x = 3,280,624.47 × 1,761,356.13
  4. Step 4: Simplify right side
    2,190,138.09x = 5,778,348,020,462.50
  5. Step 5: Solve for x
    x = 5,778,348,020,462.50/2,190,138.09
  6. Step 6: Final answer
    x = 2,638,348.72

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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.