Home / 3,124.40-4,313.42-2,492.90

Finding the Fourth Proportional to 3,124.40, 4,313.42 and 2,492.90

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Solution

The fourth proportional to 3,124.40, 4,313.42 and 2,492.90 is: 3,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.40 : 4,313.42 = 2,492.90 : x
  2. Step 2: Convert to fraction form
    3,124.40/4,313.42 = 2,492.90/x
  3. Step 3: Cross multiply
    3,124.40x = 4,313.42 × 2,492.90
  4. Step 4: Simplify right side
    3,124.40x = 10,752,924.72
  5. Step 5: Solve for x
    x = 10,752,924.72/3,124.40
  6. Step 6: Final answer
    x = 3,441.60

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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.