Home / 2,135.24-2,946.28-1,190.83

Finding the Fourth Proportional to 2,135.24, 2,946.28 and 1,190.83

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Solution

The fourth proportional to 2,135.24, 2,946.28 and 1,190.83 is: 1,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.24 : 2,946.28 = 1,190.83 : x
  2. Step 2: Convert to fraction form
    2,135.24/2,946.28 = 1,190.83/x
  3. Step 3: Cross multiply
    2,135.24x = 2,946.28 × 1,190.83
  4. Step 4: Simplify right side
    2,135.24x = 3,508,518.61
  5. Step 5: Solve for x
    x = 3,508,518.61/2,135.24
  6. Step 6: Final answer
    x = 1,643.15

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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.