Home / 5,159.94-7,120.68-2,802.04

Finding the Fourth Proportional to 5,159.94, 7,120.68 and 2,802.04

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Solution

The fourth proportional to 5,159.94, 7,120.68 and 2,802.04 is: 3,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.94 : 7,120.68 = 2,802.04 : x
  2. Step 2: Convert to fraction form
    5,159.94/7,120.68 = 2,802.04/x
  3. Step 3: Cross multiply
    5,159.94x = 7,120.68 × 2,802.04
  4. Step 4: Simplify right side
    5,159.94x = 19,952,430.19
  5. Step 5: Solve for x
    x = 19,952,430.19/5,159.94
  6. Step 6: Final answer
    x = 3,866.79

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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.