Home / 2,887.04-3,983.92-1,628.08

Finding the Fourth Proportional to 2,887.04, 3,983.92 and 1,628.08

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Solution

The fourth proportional to 2,887.04, 3,983.92 and 1,628.08 is: 2,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.04 : 3,983.92 = 1,628.08 : x
  2. Step 2: Convert to fraction form
    2,887.04/3,983.92 = 1,628.08/x
  3. Step 3: Cross multiply
    2,887.04x = 3,983.92 × 1,628.08
  4. Step 4: Simplify right side
    2,887.04x = 6,486,140.47
  5. Step 5: Solve for x
    x = 6,486,140.47/2,887.04
  6. Step 6: Final answer
    x = 2,246.64

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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.