Home / 5,320.95-7,981.44-1,623.17

Finding the Fourth Proportional to 5,320.95, 7,981.44 and 1,623.17

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Solution

The fourth proportional to 5,320.95, 7,981.44 and 1,623.17 is: 2,434.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.95 : 7,981.44 = 1,623.17 : x
  2. Step 2: Convert to fraction form
    5,320.95/7,981.44 = 1,623.17/x
  3. Step 3: Cross multiply
    5,320.95x = 7,981.44 × 1,623.17
  4. Step 4: Simplify right side
    5,320.95x = 12,955,194.06
  5. Step 5: Solve for x
    x = 12,955,194.06/5,320.95
  6. Step 6: Final answer
    x = 2,434.75

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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.