Home / 2,105,145.22-2,905,102.08-1,138,276.17

Finding the Fourth Proportional to 2,105,145.22, 2,905,102.08 and 1,138,276.17

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Solution

The fourth proportional to 2,105,145.22, 2,905,102.08 and 1,138,276.17 is: 1,570,822.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,145.22 : 2,905,102.08 = 1,138,276.17 : x
  2. Step 2: Convert to fraction form
    2,105,145.22/2,905,102.08 = 1,138,276.17/x
  3. Step 3: Cross multiply
    2,105,145.22x = 2,905,102.08 × 1,138,276.17
  4. Step 4: Simplify right side
    2,105,145.22x = 3,306,808,469,081.43
  5. Step 5: Solve for x
    x = 3,306,808,469,081.43/2,105,145.22
  6. Step 6: Final answer
    x = 1,570,822.02

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Double scale
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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.