Home / 1,885.27-2,600.09-1,213.18

Finding the Fourth Proportional to 1,885.27, 2,600.09 and 1,213.18

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Solution

The fourth proportional to 1,885.27, 2,600.09 and 1,213.18 is: 1,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.27 : 2,600.09 = 1,213.18 : x
  2. Step 2: Convert to fraction form
    1,885.27/2,600.09 = 1,213.18/x
  3. Step 3: Cross multiply
    1,885.27x = 2,600.09 × 1,213.18
  4. Step 4: Simplify right side
    1,885.27x = 3,154,371.12
  5. Step 5: Solve for x
    x = 3,154,371.12/1,885.27
  6. Step 6: Final answer
    x = 1,673.17

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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.