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Finding the Fourth Proportional to 2,898.78, 4,347.25 and 1,666.77

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Solution

The fourth proportional to 2,898.78, 4,347.25 and 1,666.77 is: 2,499.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.78 : 4,347.25 = 1,666.77 : x
  2. Step 2: Convert to fraction form
    2,898.78/4,347.25 = 1,666.77/x
  3. Step 3: Cross multiply
    2,898.78x = 4,347.25 × 1,666.77
  4. Step 4: Simplify right side
    2,898.78x = 7,245,865.88
  5. Step 5: Solve for x
    x = 7,245,865.88/2,898.78
  6. Step 6: Final answer
    x = 2,499.63

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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.