Home / 6,831.18-10,247.34-1,900.86

Finding the Fourth Proportional to 6,831.18, 10,247.34 and 1,900.86

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Solution

The fourth proportional to 6,831.18, 10,247.34 and 1,900.86 is: 2,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,831.18 : 10,247.34 = 1,900.86 : x
  2. Step 2: Convert to fraction form
    6,831.18/10,247.34 = 1,900.86/x
  3. Step 3: Cross multiply
    6,831.18x = 10,247.34 × 1,900.86
  4. Step 4: Simplify right side
    6,831.18x = 19,478,758.71
  5. Step 5: Solve for x
    x = 19,478,758.71/6,831.18
  6. Step 6: Final answer
    x = 2,851.45

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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.