Home / 2,509.08-3,462.49-1,390.02

Finding the Fourth Proportional to 2,509.08, 3,462.49 and 1,390.02

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Solution

The fourth proportional to 2,509.08, 3,462.49 and 1,390.02 is: 1,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.08 : 3,462.49 = 1,390.02 : x
  2. Step 2: Convert to fraction form
    2,509.08/3,462.49 = 1,390.02/x
  3. Step 3: Cross multiply
    2,509.08x = 3,462.49 × 1,390.02
  4. Step 4: Simplify right side
    2,509.08x = 4,812,930.35
  5. Step 5: Solve for x
    x = 4,812,930.35/2,509.08
  6. Step 6: Final answer
    x = 1,918.21

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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.