Home / 2,156,420.16-2,976,816.06-1,392,846.12

Finding the Fourth Proportional to 2,156,420.16, 2,976,816.06 and 1,392,846.12

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Solution

The fourth proportional to 2,156,420.16, 2,976,816.06 and 1,392,846.12 is: 1,922,745.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,420.16 : 2,976,816.06 = 1,392,846.12 : x
  2. Step 2: Convert to fraction form
    2,156,420.16/2,976,816.06 = 1,392,846.12/x
  3. Step 3: Cross multiply
    2,156,420.16x = 2,976,816.06 × 1,392,846.12
  4. Step 4: Simplify right side
    2,156,420.16x = 4,146,246,699,124.69
  5. Step 5: Solve for x
    x = 4,146,246,699,124.69/2,156,420.16
  6. Step 6: Final answer
    x = 1,922,745.29

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1.5x scale

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.