Home / 3,156.57-4,356.18-1,831.01

Finding the Fourth Proportional to 3,156.57, 4,356.18 and 1,831.01

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Solution

The fourth proportional to 3,156.57, 4,356.18 and 1,831.01 is: 2,526.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.57 : 4,356.18 = 1,831.01 : x
  2. Step 2: Convert to fraction form
    3,156.57/4,356.18 = 1,831.01/x
  3. Step 3: Cross multiply
    3,156.57x = 4,356.18 × 1,831.01
  4. Step 4: Simplify right side
    3,156.57x = 7,976,187.36
  5. Step 5: Solve for x
    x = 7,976,187.36/3,156.57
  6. Step 6: Final answer
    x = 2,526.85

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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.