Home / 5,339.13-7,368-2,981.28

Finding the Fourth Proportional to 5,339.13, 7,368 and 2,981.28

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Solution

The fourth proportional to 5,339.13, 7,368 and 2,981.28 is: 4,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,339.13 : 7,368 = 2,981.28 : x
  2. Step 2: Convert to fraction form
    5,339.13/7,368 = 2,981.28/x
  3. Step 3: Cross multiply
    5,339.13x = 7,368 × 2,981.28
  4. Step 4: Simplify right side
    5,339.13x = 21,966,071.04
  5. Step 5: Solve for x
    x = 21,966,071.04/5,339.13
  6. Step 6: Final answer
    x = 4,114.17

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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.