Home / 2,187,053.75-3,018,134.22-1,281,635.75

Finding the Fourth Proportional to 2,187,053.75, 3,018,134.22 and 1,281,635.75

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Solution

The fourth proportional to 2,187,053.75, 3,018,134.22 and 1,281,635.75 is: 1,768,657.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,053.75 : 3,018,134.22 = 1,281,635.75 : x
  2. Step 2: Convert to fraction form
    2,187,053.75/3,018,134.22 = 1,281,635.75/x
  3. Step 3: Cross multiply
    2,187,053.75x = 3,018,134.22 × 1,281,635.75
  4. Step 4: Simplify right side
    2,187,053.75x = 3,868,148,714,650.37
  5. Step 5: Solve for x
    x = 3,868,148,714,650.37/2,187,053.75
  6. Step 6: Final answer
    x = 1,768,657.36

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1.5x scale

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.