Home / 1,206.10-1,809.25-384.49

Finding the Fourth Proportional to 1,206.10, 1,809.25 and 384.49

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Solution

The fourth proportional to 1,206.10, 1,809.25 and 384.49 is: 576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.10 : 1,809.25 = 384.49 : x
  2. Step 2: Convert to fraction form
    1,206.10/1,809.25 = 384.49/x
  3. Step 3: Cross multiply
    1,206.10x = 1,809.25 × 384.49
  4. Step 4: Simplify right side
    1,206.10x = 695,633.05
  5. Step 5: Solve for x
    x = 695,633.05/1,206.10
  6. Step 6: Final answer
    x = 576.76

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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.