Home / 2,776.48-4,167.61-1,858.45

Finding the Fourth Proportional to 2,776.48, 4,167.61 and 1,858.45

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Solution

The fourth proportional to 2,776.48, 4,167.61 and 1,858.45 is: 2,789.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.48 : 4,167.61 = 1,858.45 : x
  2. Step 2: Convert to fraction form
    2,776.48/4,167.61 = 1,858.45/x
  3. Step 3: Cross multiply
    2,776.48x = 4,167.61 × 1,858.45
  4. Step 4: Simplify right side
    2,776.48x = 7,745,294.80
  5. Step 5: Solve for x
    x = 7,745,294.80/2,776.48
  6. Step 6: Final answer
    x = 2,789.61

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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.