Home / 2,809.68-4,203.72-2,263.20

Finding the Fourth Proportional to 2,809.68, 4,203.72 and 2,263.20

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Solution

The fourth proportional to 2,809.68, 4,203.72 and 2,263.20 is: 3,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.68 : 4,203.72 = 2,263.20 : x
  2. Step 2: Convert to fraction form
    2,809.68/4,203.72 = 2,263.20/x
  3. Step 3: Cross multiply
    2,809.68x = 4,203.72 × 2,263.20
  4. Step 4: Simplify right side
    2,809.68x = 9,513,859.10
  5. Step 5: Solve for x
    x = 9,513,859.10/2,809.68
  6. Step 6: Final answer
    x = 3,386.10

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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.