Home / 5,276.08-7,911.96-1,987.52

Finding the Fourth Proportional to 5,276.08, 7,911.96 and 1,987.52

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Solution

The fourth proportional to 5,276.08, 7,911.96 and 1,987.52 is: 2,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.08 : 7,911.96 = 1,987.52 : x
  2. Step 2: Convert to fraction form
    5,276.08/7,911.96 = 1,987.52/x
  3. Step 3: Cross multiply
    5,276.08x = 7,911.96 × 1,987.52
  4. Step 4: Simplify right side
    5,276.08x = 15,725,178.74
  5. Step 5: Solve for x
    x = 15,725,178.74/5,276.08
  6. Step 6: Final answer
    x = 2,980.47

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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.