Home / 2,128.99-2,937.75-1,244.17

Finding the Fourth Proportional to 2,128.99, 2,937.75 and 1,244.17

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Solution

The fourth proportional to 2,128.99, 2,937.75 and 1,244.17 is: 1,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.99 : 2,937.75 = 1,244.17 : x
  2. Step 2: Convert to fraction form
    2,128.99/2,937.75 = 1,244.17/x
  3. Step 3: Cross multiply
    2,128.99x = 2,937.75 × 1,244.17
  4. Step 4: Simplify right side
    2,128.99x = 3,655,060.42
  5. Step 5: Solve for x
    x = 3,655,060.42/2,128.99
  6. Step 6: Final answer
    x = 1,716.80

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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.