Home / 1,717.35-2,370.92-1,187.01

Finding the Fourth Proportional to 1,717.35, 2,370.92 and 1,187.01

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Solution

The fourth proportional to 1,717.35, 2,370.92 and 1,187.01 is: 1,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.35 : 2,370.92 = 1,187.01 : x
  2. Step 2: Convert to fraction form
    1,717.35/2,370.92 = 1,187.01/x
  3. Step 3: Cross multiply
    1,717.35x = 2,370.92 × 1,187.01
  4. Step 4: Simplify right side
    1,717.35x = 2,814,299.81
  5. Step 5: Solve for x
    x = 2,814,299.81/1,717.35
  6. Step 6: Final answer
    x = 1,638.75

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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.