Home / 2,831.05-3,907.20-1,652.12

Finding the Fourth Proportional to 2,831.05, 3,907.20 and 1,652.12

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Solution

The fourth proportional to 2,831.05, 3,907.20 and 1,652.12 is: 2,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.05 : 3,907.20 = 1,652.12 : x
  2. Step 2: Convert to fraction form
    2,831.05/3,907.20 = 1,652.12/x
  3. Step 3: Cross multiply
    2,831.05x = 3,907.20 × 1,652.12
  4. Step 4: Simplify right side
    2,831.05x = 6,455,163.26
  5. Step 5: Solve for x
    x = 6,455,163.26/2,831.05
  6. Step 6: Final answer
    x = 2,280.13

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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.