Home / 2,971.35-4,098.66-1,908.76

Finding the Fourth Proportional to 2,971.35, 4,098.66 and 1,908.76

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Solution

The fourth proportional to 2,971.35, 4,098.66 and 1,908.76 is: 2,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.35 : 4,098.66 = 1,908.76 : x
  2. Step 2: Convert to fraction form
    2,971.35/4,098.66 = 1,908.76/x
  3. Step 3: Cross multiply
    2,971.35x = 4,098.66 × 1,908.76
  4. Step 4: Simplify right side
    2,971.35x = 7,823,337.77
  5. Step 5: Solve for x
    x = 7,823,337.77/2,971.35
  6. Step 6: Final answer
    x = 2,632.93

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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.