Home / 2,190.11-3,017.16-1,525.77

Finding the Fourth Proportional to 2,190.11, 3,017.16 and 1,525.77

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Solution

The fourth proportional to 2,190.11, 3,017.16 and 1,525.77 is: 2,101.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.11 : 3,017.16 = 1,525.77 : x
  2. Step 2: Convert to fraction form
    2,190.11/3,017.16 = 1,525.77/x
  3. Step 3: Cross multiply
    2,190.11x = 3,017.16 × 1,525.77
  4. Step 4: Simplify right side
    2,190.11x = 4,603,492.21
  5. Step 5: Solve for x
    x = 4,603,492.21/2,190.11
  6. Step 6: Final answer
    x = 2,101.95

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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.