Home / 1,416.09-2,115.18-1,197.39

Finding the Fourth Proportional to 1,416.09, 2,115.18 and 1,197.39

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Solution

The fourth proportional to 1,416.09, 2,115.18 and 1,197.39 is: 1,788.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.09 : 2,115.18 = 1,197.39 : x
  2. Step 2: Convert to fraction form
    1,416.09/2,115.18 = 1,197.39/x
  3. Step 3: Cross multiply
    1,416.09x = 2,115.18 × 1,197.39
  4. Step 4: Simplify right side
    1,416.09x = 2,532,695.38
  5. Step 5: Solve for x
    x = 2,532,695.38/1,416.09
  6. Step 6: Final answer
    x = 1,788.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.