Home / 2,509.08-3,462.46-1,389.97

Finding the Fourth Proportional to 2,509.08, 3,462.46 and 1,389.97

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Solution

The fourth proportional to 2,509.08, 3,462.46 and 1,389.97 is: 1,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.08 : 3,462.46 = 1,389.97 : x
  2. Step 2: Convert to fraction form
    2,509.08/3,462.46 = 1,389.97/x
  3. Step 3: Cross multiply
    2,509.08x = 3,462.46 × 1,389.97
  4. Step 4: Simplify right side
    2,509.08x = 4,812,715.53
  5. Step 5: Solve for x
    x = 4,812,715.53/2,509.08
  6. Step 6: Final answer
    x = 1,918.12

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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.