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Finding the Fourth Proportional to 2,860, 4,266.38 and 2,423.98

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Solution

The fourth proportional to 2,860, 4,266.38 and 2,423.98 is: 3,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860 : 4,266.38 = 2,423.98 : x
  2. Step 2: Convert to fraction form
    2,860/4,266.38 = 2,423.98/x
  3. Step 3: Cross multiply
    2,860x = 4,266.38 × 2,423.98
  4. Step 4: Simplify right side
    2,860x = 10,341,619.79
  5. Step 5: Solve for x
    x = 10,341,619.79/2,860
  6. Step 6: Final answer
    x = 3,615.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.