Home / 4,853.24-7,278.60-1,389.68

Finding the Fourth Proportional to 4,853.24, 7,278.60 and 1,389.68

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Solution

The fourth proportional to 4,853.24, 7,278.60 and 1,389.68 is: 2,084.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,853.24 : 7,278.60 = 1,389.68 : x
  2. Step 2: Convert to fraction form
    4,853.24/7,278.60 = 1,389.68/x
  3. Step 3: Cross multiply
    4,853.24x = 7,278.60 × 1,389.68
  4. Step 4: Simplify right side
    4,853.24x = 10,114,924.85
  5. Step 5: Solve for x
    x = 10,114,924.85/4,853.24
  6. Step 6: Final answer
    x = 2,084.16

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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.