Home / 2,197.40-3,032.33-1,312.67

Finding the Fourth Proportional to 2,197.40, 3,032.33 and 1,312.67

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Solution

The fourth proportional to 2,197.40, 3,032.33 and 1,312.67 is: 1,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.40 : 3,032.33 = 1,312.67 : x
  2. Step 2: Convert to fraction form
    2,197.40/3,032.33 = 1,312.67/x
  3. Step 3: Cross multiply
    2,197.40x = 3,032.33 × 1,312.67
  4. Step 4: Simplify right side
    2,197.40x = 3,980,448.62
  5. Step 5: Solve for x
    x = 3,980,448.62/2,197.40
  6. Step 6: Final answer
    x = 1,811.44

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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.