Home / 2,890,686.72-3,989,041.80-1,667,043.84

Finding the Fourth Proportional to 2,890,686.72, 3,989,041.80 and 1,667,043.84

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Solution

The fourth proportional to 2,890,686.72, 3,989,041.80 and 1,667,043.84 is: 2,300,459.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,686.72 : 3,989,041.80 = 1,667,043.84 : x
  2. Step 2: Convert to fraction form
    2,890,686.72/3,989,041.80 = 1,667,043.84/x
  3. Step 3: Cross multiply
    2,890,686.72x = 3,989,041.80 × 1,667,043.84
  4. Step 4: Simplify right side
    2,890,686.72x = 6,649,907,560,192.51
  5. Step 5: Solve for x
    x = 6,649,907,560,192.51/2,890,686.72
  6. Step 6: Final answer
    x = 2,300,459.44

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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.