Home / 3,130.22-4,672.90-2,911.52

Finding the Fourth Proportional to 3,130.22, 4,672.90 and 2,911.52

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Solution

The fourth proportional to 3,130.22, 4,672.90 and 2,911.52 is: 4,346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.22 : 4,672.90 = 2,911.52 : x
  2. Step 2: Convert to fraction form
    3,130.22/4,672.90 = 2,911.52/x
  3. Step 3: Cross multiply
    3,130.22x = 4,672.90 × 2,911.52
  4. Step 4: Simplify right side
    3,130.22x = 13,605,241.81
  5. Step 5: Solve for x
    x = 13,605,241.81/3,130.22
  6. Step 6: Final answer
    x = 4,346.42

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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.