Home / 2,811,113.28-3,879,330.84-1,521,953.46

Finding the Fourth Proportional to 2,811,113.28, 3,879,330.84 and 1,521,953.46

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Solution

The fourth proportional to 2,811,113.28, 3,879,330.84 and 1,521,953.46 is: 2,100,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,113.28 : 3,879,330.84 = 1,521,953.46 : x
  2. Step 2: Convert to fraction form
    2,811,113.28/3,879,330.84 = 1,521,953.46/x
  3. Step 3: Cross multiply
    2,811,113.28x = 3,879,330.84 × 1,521,953.46
  4. Step 4: Simplify right side
    2,811,113.28x = 5,904,160,994,422.71
  5. Step 5: Solve for x
    x = 5,904,160,994,422.71/2,811,113.28
  6. Step 6: Final answer
    x = 2,100,292.80

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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.