Home / 3,130.79-4,677.82-3,021.81

Finding the Fourth Proportional to 3,130.79, 4,677.82 and 3,021.81

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Solution

The fourth proportional to 3,130.79, 4,677.82 and 3,021.81 is: 4,514.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.79 : 4,677.82 = 3,021.81 : x
  2. Step 2: Convert to fraction form
    3,130.79/4,677.82 = 3,021.81/x
  3. Step 3: Cross multiply
    3,130.79x = 4,677.82 × 3,021.81
  4. Step 4: Simplify right side
    3,130.79x = 14,135,458.16
  5. Step 5: Solve for x
    x = 14,135,458.16/3,130.79
  6. Step 6: Final answer
    x = 4,514.99

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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.