Home / 3,707.04-5,120.16-2,822.40

Finding the Fourth Proportional to 3,707.04, 5,120.16 and 2,822.40

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Solution

The fourth proportional to 3,707.04, 5,120.16 and 2,822.40 is: 3,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.04 : 5,120.16 = 2,822.40 : x
  2. Step 2: Convert to fraction form
    3,707.04/5,120.16 = 2,822.40/x
  3. Step 3: Cross multiply
    3,707.04x = 5,120.16 × 2,822.40
  4. Step 4: Simplify right side
    3,707.04x = 14,451,139.58
  5. Step 5: Solve for x
    x = 14,451,139.58/3,707.04
  6. Step 6: Final answer
    x = 3,898.30

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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.