Home / 1,810.20-2,713.68-945.12

Finding the Fourth Proportional to 1,810.20, 2,713.68 and 945.12

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Solution

The fourth proportional to 1,810.20, 2,713.68 and 945.12 is: 1,416.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.20 : 2,713.68 = 945.12 : x
  2. Step 2: Convert to fraction form
    1,810.20/2,713.68 = 945.12/x
  3. Step 3: Cross multiply
    1,810.20x = 2,713.68 × 945.12
  4. Step 4: Simplify right side
    1,810.20x = 2,564,753.24
  5. Step 5: Solve for x
    x = 2,564,753.24/1,810.20
  6. Step 6: Final answer
    x = 1,416.83

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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.