Home / 1,206.20-1,807.70-895.62

Finding the Fourth Proportional to 1,206.20, 1,807.70 and 895.62

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Solution

The fourth proportional to 1,206.20, 1,807.70 and 895.62 is: 1,342.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.20 : 1,807.70 = 895.62 : x
  2. Step 2: Convert to fraction form
    1,206.20/1,807.70 = 895.62/x
  3. Step 3: Cross multiply
    1,206.20x = 1,807.70 × 895.62
  4. Step 4: Simplify right side
    1,206.20x = 1,619,012.27
  5. Step 5: Solve for x
    x = 1,619,012.27/1,206.20
  6. Step 6: Final answer
    x = 1,342.24

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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.