Home / 2,381.60-3,557.87-1,895.20

Finding the Fourth Proportional to 2,381.60, 3,557.87 and 1,895.20

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Solution

The fourth proportional to 2,381.60, 3,557.87 and 1,895.20 is: 2,831.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.60 : 3,557.87 = 1,895.20 : x
  2. Step 2: Convert to fraction form
    2,381.60/3,557.87 = 1,895.20/x
  3. Step 3: Cross multiply
    2,381.60x = 3,557.87 × 1,895.20
  4. Step 4: Simplify right side
    2,381.60x = 6,742,874.62
  5. Step 5: Solve for x
    x = 6,742,874.62/2,381.60
  6. Step 6: Final answer
    x = 2,831.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.