Home / 2,828.34-4,242.47-1,666.43

Finding the Fourth Proportional to 2,828.34, 4,242.47 and 1,666.43

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Solution

The fourth proportional to 2,828.34, 4,242.47 and 1,666.43 is: 2,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.34 : 4,242.47 = 1,666.43 : x
  2. Step 2: Convert to fraction form
    2,828.34/4,242.47 = 1,666.43/x
  3. Step 3: Cross multiply
    2,828.34x = 4,242.47 × 1,666.43
  4. Step 4: Simplify right side
    2,828.34x = 7,069,779.28
  5. Step 5: Solve for x
    x = 7,069,779.28/2,828.34
  6. Step 6: Final answer
    x = 2,499.62

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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.