Home / 2,187,071.80-3,280,607.70-1,384,005.40

Finding the Fourth Proportional to 2,187,071.80, 3,280,607.70 and 1,384,005.40

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Solution

The fourth proportional to 2,187,071.80, 3,280,607.70 and 1,384,005.40 is: 2,076,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,071.80 : 3,280,607.70 = 1,384,005.40 : x
  2. Step 2: Convert to fraction form
    2,187,071.80/3,280,607.70 = 1,384,005.40/x
  3. Step 3: Cross multiply
    2,187,071.80x = 3,280,607.70 × 1,384,005.40
  4. Step 4: Simplify right side
    2,187,071.80x = 4,540,378,772,081.58
  5. Step 5: Solve for x
    x = 4,540,378,772,081.58/2,187,071.80
  6. Step 6: Final answer
    x = 2,076,008.10

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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.