Home / 3,018.64-4,165.72-1,692.40

Finding the Fourth Proportional to 3,018.64, 4,165.72 and 1,692.40

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Solution

The fourth proportional to 3,018.64, 4,165.72 and 1,692.40 is: 2,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.64 : 4,165.72 = 1,692.40 : x
  2. Step 2: Convert to fraction form
    3,018.64/4,165.72 = 1,692.40/x
  3. Step 3: Cross multiply
    3,018.64x = 4,165.72 × 1,692.40
  4. Step 4: Simplify right side
    3,018.64x = 7,050,064.53
  5. Step 5: Solve for x
    x = 7,050,064.53/3,018.64
  6. Step 6: Final answer
    x = 2,335.51

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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.