Home / 3,345.78-5,021.75-1,703.50

Finding the Fourth Proportional to 3,345.78, 5,021.75 and 1,703.50

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Solution

The fourth proportional to 3,345.78, 5,021.75 and 1,703.50 is: 2,556.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.78 : 5,021.75 = 1,703.50 : x
  2. Step 2: Convert to fraction form
    3,345.78/5,021.75 = 1,703.50/x
  3. Step 3: Cross multiply
    3,345.78x = 5,021.75 × 1,703.50
  4. Step 4: Simplify right side
    3,345.78x = 8,554,551.13
  5. Step 5: Solve for x
    x = 8,554,551.13/3,345.78
  6. Step 6: Final answer
    x = 2,556.82

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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.