Home / 1,717.22-2,369.58-1,128.54

Finding the Fourth Proportional to 1,717.22, 2,369.58 and 1,128.54

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Solution

The fourth proportional to 1,717.22, 2,369.58 and 1,128.54 is: 1,557.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.22 : 2,369.58 = 1,128.54 : x
  2. Step 2: Convert to fraction form
    1,717.22/2,369.58 = 1,128.54/x
  3. Step 3: Cross multiply
    1,717.22x = 2,369.58 × 1,128.54
  4. Step 4: Simplify right side
    1,717.22x = 2,674,165.81
  5. Step 5: Solve for x
    x = 2,674,165.81/1,717.22
  6. Step 6: Final answer
    x = 1,557.26

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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.