Home / 3,345.57-4,615.85-1,929.06

Finding the Fourth Proportional to 3,345.57, 4,615.85 and 1,929.06

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Solution

The fourth proportional to 3,345.57, 4,615.85 and 1,929.06 is: 2,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.57 : 4,615.85 = 1,929.06 : x
  2. Step 2: Convert to fraction form
    3,345.57/4,615.85 = 1,929.06/x
  3. Step 3: Cross multiply
    3,345.57x = 4,615.85 × 1,929.06
  4. Step 4: Simplify right side
    3,345.57x = 8,904,241.96
  5. Step 5: Solve for x
    x = 8,904,241.96/3,345.57
  6. Step 6: Final answer
    x = 2,661.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.