Home / 1,477.94-2,221.07-1,117.08

Finding the Fourth Proportional to 1,477.94, 2,221.07 and 1,117.08

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Solution

The fourth proportional to 1,477.94, 2,221.07 and 1,117.08 is: 1,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.94 : 2,221.07 = 1,117.08 : x
  2. Step 2: Convert to fraction form
    1,477.94/2,221.07 = 1,117.08/x
  3. Step 3: Cross multiply
    1,477.94x = 2,221.07 × 1,117.08
  4. Step 4: Simplify right side
    1,477.94x = 2,481,107.29
  5. Step 5: Solve for x
    x = 2,481,107.29/1,477.94
  6. Step 6: Final answer
    x = 1,678.77

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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.