Home / 7,130.60-10,694.30-3,430.94

Finding the Fourth Proportional to 7,130.60, 10,694.30 and 3,430.94

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Solution

The fourth proportional to 7,130.60, 10,694.30 and 3,430.94 is: 5,145.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.60 : 10,694.30 = 3,430.94 : x
  2. Step 2: Convert to fraction form
    7,130.60/10,694.30 = 3,430.94/x
  3. Step 3: Cross multiply
    7,130.60x = 10,694.30 × 3,430.94
  4. Step 4: Simplify right side
    7,130.60x = 36,691,501.64
  5. Step 5: Solve for x
    x = 36,691,501.64/7,130.60
  6. Step 6: Final answer
    x = 5,145.64

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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.