Home / 2,628.12-3,627.38-1,509.10

Finding the Fourth Proportional to 2,628.12, 3,627.38 and 1,509.10

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Solution

The fourth proportional to 2,628.12, 3,627.38 and 1,509.10 is: 2,082.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.12 : 3,627.38 = 1,509.10 : x
  2. Step 2: Convert to fraction form
    2,628.12/3,627.38 = 1,509.10/x
  3. Step 3: Cross multiply
    2,628.12x = 3,627.38 × 1,509.10
  4. Step 4: Simplify right side
    2,628.12x = 5,474,079.16
  5. Step 5: Solve for x
    x = 5,474,079.16/2,628.12
  6. Step 6: Final answer
    x = 2,082.89

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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.