Home / 2,143.13-2,953.87-1,768.91

Finding the Fourth Proportional to 2,143.13, 2,953.87 and 1,768.91

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Solution

The fourth proportional to 2,143.13, 2,953.87 and 1,768.91 is: 2,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.13 : 2,953.87 = 1,768.91 : x
  2. Step 2: Convert to fraction form
    2,143.13/2,953.87 = 1,768.91/x
  3. Step 3: Cross multiply
    2,143.13x = 2,953.87 × 1,768.91
  4. Step 4: Simplify right side
    2,143.13x = 5,225,110.99
  5. Step 5: Solve for x
    x = 5,225,110.99/2,143.13
  6. Step 6: Final answer
    x = 2,438.08

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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.