Home / 7,684.78-11,528.88-2,490.34

Finding the Fourth Proportional to 7,684.78, 11,528.88 and 2,490.34

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Solution

The fourth proportional to 7,684.78, 11,528.88 and 2,490.34 is: 3,736.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,684.78 : 11,528.88 = 2,490.34 : x
  2. Step 2: Convert to fraction form
    7,684.78/11,528.88 = 2,490.34/x
  3. Step 3: Cross multiply
    7,684.78x = 11,528.88 × 2,490.34
  4. Step 4: Simplify right side
    7,684.78x = 28,710,831.02
  5. Step 5: Solve for x
    x = 28,710,831.02/7,684.78
  6. Step 6: Final answer
    x = 3,736.06

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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.