Home / 2,831.24-4,246.04-1,721

Finding the Fourth Proportional to 2,831.24, 4,246.04 and 1,721

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Solution

The fourth proportional to 2,831.24, 4,246.04 and 1,721 is: 2,581.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.24 : 4,246.04 = 1,721 : x
  2. Step 2: Convert to fraction form
    2,831.24/4,246.04 = 1,721/x
  3. Step 3: Cross multiply
    2,831.24x = 4,246.04 × 1,721
  4. Step 4: Simplify right side
    2,831.24x = 7,307,434.84
  5. Step 5: Solve for x
    x = 7,307,434.84/2,831.24
  6. Step 6: Final answer
    x = 2,581.00

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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.