Home / 7,890.07-11,831.64-2,956.25

Finding the Fourth Proportional to 7,890.07, 11,831.64 and 2,956.25

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Solution

The fourth proportional to 7,890.07, 11,831.64 and 2,956.25 is: 4,433.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.07 : 11,831.64 = 2,956.25 : x
  2. Step 2: Convert to fraction form
    7,890.07/11,831.64 = 2,956.25/x
  3. Step 3: Cross multiply
    7,890.07x = 11,831.64 × 2,956.25
  4. Step 4: Simplify right side
    7,890.07x = 34,977,285.75
  5. Step 5: Solve for x
    x = 34,977,285.75/7,890.07
  6. Step 6: Final answer
    x = 4,433.08

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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.