Home / 2,721.12-3,756.24-2,303.64

Finding the Fourth Proportional to 2,721.12, 3,756.24 and 2,303.64

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Solution

The fourth proportional to 2,721.12, 3,756.24 and 2,303.64 is: 3,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.12 : 3,756.24 = 2,303.64 : x
  2. Step 2: Convert to fraction form
    2,721.12/3,756.24 = 2,303.64/x
  3. Step 3: Cross multiply
    2,721.12x = 3,756.24 × 2,303.64
  4. Step 4: Simplify right side
    2,721.12x = 8,653,024.71
  5. Step 5: Solve for x
    x = 8,653,024.71/2,721.12
  6. Step 6: Final answer
    x = 3,179.95

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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.