Home / 4,690.40-7,043.70-3,313.40

Finding the Fourth Proportional to 4,690.40, 7,043.70 and 3,313.40

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Solution

The fourth proportional to 4,690.40, 7,043.70 and 3,313.40 is: 4,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.40 : 7,043.70 = 3,313.40 : x
  2. Step 2: Convert to fraction form
    4,690.40/7,043.70 = 3,313.40/x
  3. Step 3: Cross multiply
    4,690.40x = 7,043.70 × 3,313.40
  4. Step 4: Simplify right side
    4,690.40x = 23,338,595.58
  5. Step 5: Solve for x
    x = 23,338,595.58/4,690.40
  6. Step 6: Final answer
    x = 4,975.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.