Home / 2,692,718.80-4,032,079.80-2,128,181.20

Finding the Fourth Proportional to 2,692,718.80, 4,032,079.80 and 2,128,181.20

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Solution

The fourth proportional to 2,692,718.80, 4,032,079.80 and 2,128,181.20 is: 3,186,740.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692,718.80 : 4,032,079.80 = 2,128,181.20 : x
  2. Step 2: Convert to fraction form
    2,692,718.80/4,032,079.80 = 2,128,181.20/x
  3. Step 3: Cross multiply
    2,692,718.80x = 4,032,079.80 × 2,128,181.20
  4. Step 4: Simplify right side
    2,692,718.80x = 8,580,996,427,259.76
  5. Step 5: Solve for x
    x = 8,580,996,427,259.76/2,692,718.80
  6. Step 6: Final answer
    x = 3,186,740.64

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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.