Home / 2,187,054.75-3,018,135.60-1,281,636.75

Finding the Fourth Proportional to 2,187,054.75, 3,018,135.60 and 1,281,636.75

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Solution

The fourth proportional to 2,187,054.75, 3,018,135.60 and 1,281,636.75 is: 1,768,658.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,054.75 : 3,018,135.60 = 1,281,636.75 : x
  2. Step 2: Convert to fraction form
    2,187,054.75/3,018,135.60 = 1,281,636.75/x
  3. Step 3: Cross multiply
    2,187,054.75x = 3,018,135.60 × 1,281,636.75
  4. Step 4: Simplify right side
    2,187,054.75x = 3,868,153,501,443.30
  5. Step 5: Solve for x
    x = 3,868,153,501,443.30/2,187,054.75
  6. Step 6: Final answer
    x = 1,768,658.74

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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.