Home / 7,511.07-11,264.85-2,831.54

Finding the Fourth Proportional to 7,511.07, 11,264.85 and 2,831.54

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Solution

The fourth proportional to 7,511.07, 11,264.85 and 2,831.54 is: 4,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.07 : 11,264.85 = 2,831.54 : x
  2. Step 2: Convert to fraction form
    7,511.07/11,264.85 = 2,831.54/x
  3. Step 3: Cross multiply
    7,511.07x = 11,264.85 × 2,831.54
  4. Step 4: Simplify right side
    7,511.07x = 31,896,901.53
  5. Step 5: Solve for x
    x = 31,896,901.53/7,511.07
  6. Step 6: Final answer
    x = 4,246.65

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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.