Home / 5,913.90-8,159.71-3,815.50

Finding the Fourth Proportional to 5,913.90, 8,159.71 and 3,815.50

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Solution

The fourth proportional to 5,913.90, 8,159.71 and 3,815.50 is: 5,264.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.90 : 8,159.71 = 3,815.50 : x
  2. Step 2: Convert to fraction form
    5,913.90/8,159.71 = 3,815.50/x
  3. Step 3: Cross multiply
    5,913.90x = 8,159.71 × 3,815.50
  4. Step 4: Simplify right side
    5,913.90x = 31,133,373.51
  5. Step 5: Solve for x
    x = 31,133,373.51/5,913.90
  6. Step 6: Final answer
    x = 5,264.44

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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.