Home / 3,138.93-4,330.53-1,880.01

Finding the Fourth Proportional to 3,138.93, 4,330.53 and 1,880.01

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Solution

The fourth proportional to 3,138.93, 4,330.53 and 1,880.01 is: 2,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.93 : 4,330.53 = 1,880.01 : x
  2. Step 2: Convert to fraction form
    3,138.93/4,330.53 = 1,880.01/x
  3. Step 3: Cross multiply
    3,138.93x = 4,330.53 × 1,880.01
  4. Step 4: Simplify right side
    3,138.93x = 8,141,439.71
  5. Step 5: Solve for x
    x = 8,141,439.71/3,138.93
  6. Step 6: Final answer
    x = 2,593.70

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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.