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Finding the Fourth Proportional to 1,666.48, 2,498.37 and 570.55

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Solution

The fourth proportional to 1,666.48, 2,498.37 and 570.55 is: 855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.48 : 2,498.37 = 570.55 : x
  2. Step 2: Convert to fraction form
    1,666.48/2,498.37 = 570.55/x
  3. Step 3: Cross multiply
    1,666.48x = 2,498.37 × 570.55
  4. Step 4: Simplify right side
    1,666.48x = 1,425,445.00
  5. Step 5: Solve for x
    x = 1,425,445.00/1,666.48
  6. Step 6: Final answer
    x = 855.36

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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.