Home / 3,831.56-5,287.98-2,509.10

Finding the Fourth Proportional to 3,831.56, 5,287.98 and 2,509.10

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Solution

The fourth proportional to 3,831.56, 5,287.98 and 2,509.10 is: 3,462.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.56 : 5,287.98 = 2,509.10 : x
  2. Step 2: Convert to fraction form
    3,831.56/5,287.98 = 2,509.10/x
  3. Step 3: Cross multiply
    3,831.56x = 5,287.98 × 2,509.10
  4. Step 4: Simplify right side
    3,831.56x = 13,268,070.62
  5. Step 5: Solve for x
    x = 13,268,070.62/3,831.56
  6. Step 6: Final answer
    x = 3,462.84

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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.