Home / 1,626.04-2,439.24-1,220.32

Finding the Fourth Proportional to 1,626.04, 2,439.24 and 1,220.32

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Solution

The fourth proportional to 1,626.04, 2,439.24 and 1,220.32 is: 1,830.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.04 : 2,439.24 = 1,220.32 : x
  2. Step 2: Convert to fraction form
    1,626.04/2,439.24 = 1,220.32/x
  3. Step 3: Cross multiply
    1,626.04x = 2,439.24 × 1,220.32
  4. Step 4: Simplify right side
    1,626.04x = 2,976,653.36
  5. Step 5: Solve for x
    x = 2,976,653.36/1,626.04
  6. Step 6: Final answer
    x = 1,830.62

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Half scale
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Double scale
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Similar ratio
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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.