Home / 4,853.04-7,279.56-1,390.28

Finding the Fourth Proportional to 4,853.04, 7,279.56 and 1,390.28

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Solution

The fourth proportional to 4,853.04, 7,279.56 and 1,390.28 is: 2,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,853.04 : 7,279.56 = 1,390.28 : x
  2. Step 2: Convert to fraction form
    4,853.04/7,279.56 = 1,390.28/x
  3. Step 3: Cross multiply
    4,853.04x = 7,279.56 × 1,390.28
  4. Step 4: Simplify right side
    4,853.04x = 10,120,626.68
  5. Step 5: Solve for x
    x = 10,120,626.68/4,853.04
  6. Step 6: Final answer
    x = 2,085.42

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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.