Home / 1,665.03-2,307.45-1,641.54

Finding the Fourth Proportional to 1,665.03, 2,307.45 and 1,641.54

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Solution

The fourth proportional to 1,665.03, 2,307.45 and 1,641.54 is: 2,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.03 : 2,307.45 = 1,641.54 : x
  2. Step 2: Convert to fraction form
    1,665.03/2,307.45 = 1,641.54/x
  3. Step 3: Cross multiply
    1,665.03x = 2,307.45 × 1,641.54
  4. Step 4: Simplify right side
    1,665.03x = 3,787,771.47
  5. Step 5: Solve for x
    x = 3,787,771.47/1,665.03
  6. Step 6: Final answer
    x = 2,274.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.