Home / 2,690.01-4,031.67-1,908.77

Finding the Fourth Proportional to 2,690.01, 4,031.67 and 1,908.77

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Solution

The fourth proportional to 2,690.01, 4,031.67 and 1,908.77 is: 2,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.01 : 4,031.67 = 1,908.77 : x
  2. Step 2: Convert to fraction form
    2,690.01/4,031.67 = 1,908.77/x
  3. Step 3: Cross multiply
    2,690.01x = 4,031.67 × 1,908.77
  4. Step 4: Simplify right side
    2,690.01x = 7,695,510.59
  5. Step 5: Solve for x
    x = 7,695,510.59/2,690.01
  6. Step 6: Final answer
    x = 2,860.77

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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.