Home / 3,365.70-5,045.16-1,285.16

Finding the Fourth Proportional to 3,365.70, 5,045.16 and 1,285.16

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Solution

The fourth proportional to 3,365.70, 5,045.16 and 1,285.16 is: 1,926.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365.70 : 5,045.16 = 1,285.16 : x
  2. Step 2: Convert to fraction form
    3,365.70/5,045.16 = 1,285.16/x
  3. Step 3: Cross multiply
    3,365.70x = 5,045.16 × 1,285.16
  4. Step 4: Simplify right side
    3,365.70x = 6,483,837.83
  5. Step 5: Solve for x
    x = 6,483,837.83/3,365.70
  6. Step 6: Final answer
    x = 1,926.45

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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.