Home / 5,320.12-7,981.47-1,622.41

Finding the Fourth Proportional to 5,320.12, 7,981.47 and 1,622.41

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Solution

The fourth proportional to 5,320.12, 7,981.47 and 1,622.41 is: 2,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.12 : 7,981.47 = 1,622.41 : x
  2. Step 2: Convert to fraction form
    5,320.12/7,981.47 = 1,622.41/x
  3. Step 3: Cross multiply
    5,320.12x = 7,981.47 × 1,622.41
  4. Step 4: Simplify right side
    5,320.12x = 12,949,208.63
  5. Step 5: Solve for x
    x = 12,949,208.63/5,320.12
  6. Step 6: Final answer
    x = 2,434.01

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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.