Home / 3,477.09-5,215.08-1,285.32

Finding the Fourth Proportional to 3,477.09, 5,215.08 and 1,285.32

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Solution

The fourth proportional to 3,477.09, 5,215.08 and 1,285.32 is: 1,927.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.09 : 5,215.08 = 1,285.32 : x
  2. Step 2: Convert to fraction form
    3,477.09/5,215.08 = 1,285.32/x
  3. Step 3: Cross multiply
    3,477.09x = 5,215.08 × 1,285.32
  4. Step 4: Simplify right side
    3,477.09x = 6,703,046.63
  5. Step 5: Solve for x
    x = 6,703,046.63/3,477.09
  6. Step 6: Final answer
    x = 1,927.77

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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.