Home / 4,077.16-5,621.10-2,815.96

Finding the Fourth Proportional to 4,077.16, 5,621.10 and 2,815.96

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Solution

The fourth proportional to 4,077.16, 5,621.10 and 2,815.96 is: 3,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,077.16 : 5,621.10 = 2,815.96 : x
  2. Step 2: Convert to fraction form
    4,077.16/5,621.10 = 2,815.96/x
  3. Step 3: Cross multiply
    4,077.16x = 5,621.10 × 2,815.96
  4. Step 4: Simplify right side
    4,077.16x = 15,828,792.76
  5. Step 5: Solve for x
    x = 15,828,792.76/4,077.16
  6. Step 6: Final answer
    x = 3,882.31

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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.