Home / 2,712.40-4,048.98-2,509.49

Finding the Fourth Proportional to 2,712.40, 4,048.98 and 2,509.49

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Solution

The fourth proportional to 2,712.40, 4,048.98 and 2,509.49 is: 3,746.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.40 : 4,048.98 = 2,509.49 : x
  2. Step 2: Convert to fraction form
    2,712.40/4,048.98 = 2,509.49/x
  3. Step 3: Cross multiply
    2,712.40x = 4,048.98 × 2,509.49
  4. Step 4: Simplify right side
    2,712.40x = 10,160,884.94
  5. Step 5: Solve for x
    x = 10,160,884.94/2,712.40
  6. Step 6: Final answer
    x = 3,746.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.