Home / 1,401.44-1,922.58-1,317.68

Finding the Fourth Proportional to 1,401.44, 1,922.58 and 1,317.68

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Solution

The fourth proportional to 1,401.44, 1,922.58 and 1,317.68 is: 1,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.44 : 1,922.58 = 1,317.68 : x
  2. Step 2: Convert to fraction form
    1,401.44/1,922.58 = 1,317.68/x
  3. Step 3: Cross multiply
    1,401.44x = 1,922.58 × 1,317.68
  4. Step 4: Simplify right side
    1,401.44x = 2,533,345.21
  5. Step 5: Solve for x
    x = 2,533,345.21/1,401.44
  6. Step 6: Final answer
    x = 1,807.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.