Home / 5,320.83-7,984.80-1,858.08

Finding the Fourth Proportional to 5,320.83, 7,984.80 and 1,858.08

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Solution

The fourth proportional to 5,320.83, 7,984.80 and 1,858.08 is: 2,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.83 : 7,984.80 = 1,858.08 : x
  2. Step 2: Convert to fraction form
    5,320.83/7,984.80 = 1,858.08/x
  3. Step 3: Cross multiply
    5,320.83x = 7,984.80 × 1,858.08
  4. Step 4: Simplify right side
    5,320.83x = 14,836,397.18
  5. Step 5: Solve for x
    x = 14,836,397.18/5,320.83
  6. Step 6: Final answer
    x = 2,788.36

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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.