Home / 5,309.51-7,972.47-2,849.13

Finding the Fourth Proportional to 5,309.51, 7,972.47 and 2,849.13

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Solution

The fourth proportional to 5,309.51, 7,972.47 and 2,849.13 is: 4,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.51 : 7,972.47 = 2,849.13 : x
  2. Step 2: Convert to fraction form
    5,309.51/7,972.47 = 2,849.13/x
  3. Step 3: Cross multiply
    5,309.51x = 7,972.47 × 2,849.13
  4. Step 4: Simplify right side
    5,309.51x = 22,714,603.45
  5. Step 5: Solve for x
    x = 22,714,603.45/5,309.51
  6. Step 6: Final answer
    x = 4,278.10

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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.