Home / 2,509.12-3,459.90-2,137.36

Finding the Fourth Proportional to 2,509.12, 3,459.90 and 2,137.36

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Solution

The fourth proportional to 2,509.12, 3,459.90 and 2,137.36 is: 2,947.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.12 : 3,459.90 = 2,137.36 : x
  2. Step 2: Convert to fraction form
    2,509.12/3,459.90 = 2,137.36/x
  3. Step 3: Cross multiply
    2,509.12x = 3,459.90 × 2,137.36
  4. Step 4: Simplify right side
    2,509.12x = 7,395,051.86
  5. Step 5: Solve for x
    x = 7,395,051.86/2,509.12
  6. Step 6: Final answer
    x = 2,947.27

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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.