Home / 2,920.68-4,380.90-1,606.98

Finding the Fourth Proportional to 2,920.68, 4,380.90 and 1,606.98

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Solution

The fourth proportional to 2,920.68, 4,380.90 and 1,606.98 is: 2,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.68 : 4,380.90 = 1,606.98 : x
  2. Step 2: Convert to fraction form
    2,920.68/4,380.90 = 1,606.98/x
  3. Step 3: Cross multiply
    2,920.68x = 4,380.90 × 1,606.98
  4. Step 4: Simplify right side
    2,920.68x = 7,040,018.68
  5. Step 5: Solve for x
    x = 7,040,018.68/2,920.68
  6. Step 6: Final answer
    x = 2,410.40

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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.