Home / 2,772.19-4,153.38-2,312.92

Finding the Fourth Proportional to 2,772.19, 4,153.38 and 2,312.92

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Solution

The fourth proportional to 2,772.19, 4,153.38 and 2,312.92 is: 3,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.19 : 4,153.38 = 2,312.92 : x
  2. Step 2: Convert to fraction form
    2,772.19/4,153.38 = 2,312.92/x
  3. Step 3: Cross multiply
    2,772.19x = 4,153.38 × 2,312.92
  4. Step 4: Simplify right side
    2,772.19x = 9,606,435.67
  5. Step 5: Solve for x
    x = 9,606,435.67/2,772.19
  6. Step 6: Final answer
    x = 3,465.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.