Home / 7,130.43-10,695.61-1,936.30

Finding the Fourth Proportional to 7,130.43, 10,695.61 and 1,936.30

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Solution

The fourth proportional to 7,130.43, 10,695.61 and 1,936.30 is: 2,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.43 : 10,695.61 = 1,936.30 : x
  2. Step 2: Convert to fraction form
    7,130.43/10,695.61 = 1,936.30/x
  3. Step 3: Cross multiply
    7,130.43x = 10,695.61 × 1,936.30
  4. Step 4: Simplify right side
    7,130.43x = 20,709,909.64
  5. Step 5: Solve for x
    x = 20,709,909.64/7,130.43
  6. Step 6: Final answer
    x = 2,904.44

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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.