Home / 3,107.69-4,288.63-1,710.49

Finding the Fourth Proportional to 3,107.69, 4,288.63 and 1,710.49

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Solution

The fourth proportional to 3,107.69, 4,288.63 and 1,710.49 is: 2,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.69 : 4,288.63 = 1,710.49 : x
  2. Step 2: Convert to fraction form
    3,107.69/4,288.63 = 1,710.49/x
  3. Step 3: Cross multiply
    3,107.69x = 4,288.63 × 1,710.49
  4. Step 4: Simplify right side
    3,107.69x = 7,335,650.18
  5. Step 5: Solve for x
    x = 7,335,650.18/3,107.69
  6. Step 6: Final answer
    x = 2,360.48

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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.