Home / 3,018.79-4,165.91-1,692.51

Finding the Fourth Proportional to 3,018.79, 4,165.91 and 1,692.51

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Solution

The fourth proportional to 3,018.79, 4,165.91 and 1,692.51 is: 2,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.79 : 4,165.91 = 1,692.51 : x
  2. Step 2: Convert to fraction form
    3,018.79/4,165.91 = 1,692.51/x
  3. Step 3: Cross multiply
    3,018.79x = 4,165.91 × 1,692.51
  4. Step 4: Simplify right side
    3,018.79x = 7,050,815.04
  5. Step 5: Solve for x
    x = 7,050,815.04/3,018.79
  6. Step 6: Final answer
    x = 2,335.64

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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.