Home / 3,501.14-4,831.56-1,929.20

Finding the Fourth Proportional to 3,501.14, 4,831.56 and 1,929.20

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Solution

The fourth proportional to 3,501.14, 4,831.56 and 1,929.20 is: 2,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.14 : 4,831.56 = 1,929.20 : x
  2. Step 2: Convert to fraction form
    3,501.14/4,831.56 = 1,929.20/x
  3. Step 3: Cross multiply
    3,501.14x = 4,831.56 × 1,929.20
  4. Step 4: Simplify right side
    3,501.14x = 9,321,045.55
  5. Step 5: Solve for x
    x = 9,321,045.55/3,501.14
  6. Step 6: Final answer
    x = 2,662.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.