Home / 2,315.55-3,193.92-1,430.22

Finding the Fourth Proportional to 2,315.55, 3,193.92 and 1,430.22

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Solution

The fourth proportional to 2,315.55, 3,193.92 and 1,430.22 is: 1,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.55 : 3,193.92 = 1,430.22 : x
  2. Step 2: Convert to fraction form
    2,315.55/3,193.92 = 1,430.22/x
  3. Step 3: Cross multiply
    2,315.55x = 3,193.92 × 1,430.22
  4. Step 4: Simplify right side
    2,315.55x = 4,568,008.26
  5. Step 5: Solve for x
    x = 4,568,008.26/2,315.55
  6. Step 6: Final answer
    x = 1,972.75

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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.