Home / 3,130.43-4,320.47-1,786.04

Finding the Fourth Proportional to 3,130.43, 4,320.47 and 1,786.04

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Solution

The fourth proportional to 3,130.43, 4,320.47 and 1,786.04 is: 2,465.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.43 : 4,320.47 = 1,786.04 : x
  2. Step 2: Convert to fraction form
    3,130.43/4,320.47 = 1,786.04/x
  3. Step 3: Cross multiply
    3,130.43x = 4,320.47 × 1,786.04
  4. Step 4: Simplify right side
    3,130.43x = 7,716,515.10
  5. Step 5: Solve for x
    x = 7,716,515.10/3,130.43
  6. Step 6: Final answer
    x = 2,465.00

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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.