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Finding the Fourth Proportional to 2,392.70, 3,303.41 and 1,509.80

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Solution

The fourth proportional to 2,392.70, 3,303.41 and 1,509.80 is: 2,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.70 : 3,303.41 = 1,509.80 : x
  2. Step 2: Convert to fraction form
    2,392.70/3,303.41 = 1,509.80/x
  3. Step 3: Cross multiply
    2,392.70x = 3,303.41 × 1,509.80
  4. Step 4: Simplify right side
    2,392.70x = 4,987,464.35
  5. Step 5: Solve for x
    x = 4,987,464.35/2,392.70
  6. Step 6: Final answer
    x = 2,084.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.