Home / 1,742.64-2,403.18-1,615.38

Finding the Fourth Proportional to 1,742.64, 2,403.18 and 1,615.38

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Solution

The fourth proportional to 1,742.64, 2,403.18 and 1,615.38 is: 2,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.64 : 2,403.18 = 1,615.38 : x
  2. Step 2: Convert to fraction form
    1,742.64/2,403.18 = 1,615.38/x
  3. Step 3: Cross multiply
    1,742.64x = 2,403.18 × 1,615.38
  4. Step 4: Simplify right side
    1,742.64x = 3,882,048.91
  5. Step 5: Solve for x
    x = 3,882,048.91/1,742.64
  6. Step 6: Final answer
    x = 2,227.68

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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.