Home / 2,100,400.40-3,143,602.20-1,932,438.80

Finding the Fourth Proportional to 2,100,400.40, 3,143,602.20 and 1,932,438.80

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Solution

The fourth proportional to 2,100,400.40, 3,143,602.20 and 1,932,438.80 is: 2,892,219.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,400.40 : 3,143,602.20 = 1,932,438.80 : x
  2. Step 2: Convert to fraction form
    2,100,400.40/3,143,602.20 = 1,932,438.80/x
  3. Step 3: Cross multiply
    2,100,400.40x = 3,143,602.20 × 1,932,438.80
  4. Step 4: Simplify right side
    2,100,400.40x = 6,074,818,863,045.36
  5. Step 5: Solve for x
    x = 6,074,818,863,045.36/2,100,400.40
  6. Step 6: Final answer
    x = 2,892,219.44

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1.5x scale

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.