Home / 1,665.60-2,498.40-1,341.60

Finding the Fourth Proportional to 1,665.60, 2,498.40 and 1,341.60

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Solution

The fourth proportional to 1,665.60, 2,498.40 and 1,341.60 is: 2,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.60 : 2,498.40 = 1,341.60 : x
  2. Step 2: Convert to fraction form
    1,665.60/2,498.40 = 1,341.60/x
  3. Step 3: Cross multiply
    1,665.60x = 2,498.40 × 1,341.60
  4. Step 4: Simplify right side
    1,665.60x = 3,351,853.44
  5. Step 5: Solve for x
    x = 3,351,853.44/1,665.60
  6. Step 6: Final answer
    x = 2,012.40

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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.