Home / 3,130.79-4,318.47-2,383.11

Finding the Fourth Proportional to 3,130.79, 4,318.47 and 2,383.11

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Solution

The fourth proportional to 3,130.79, 4,318.47 and 2,383.11 is: 3,287.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.79 : 4,318.47 = 2,383.11 : x
  2. Step 2: Convert to fraction form
    3,130.79/4,318.47 = 2,383.11/x
  3. Step 3: Cross multiply
    3,130.79x = 4,318.47 × 2,383.11
  4. Step 4: Simplify right side
    3,130.79x = 10,291,389.04
  5. Step 5: Solve for x
    x = 10,291,389.04/3,130.79
  6. Step 6: Final answer
    x = 3,287.16

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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.