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Finding the Fourth Proportional to 4,975.58, 6,866.64 and 2,987.24

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Solution

The fourth proportional to 4,975.58, 6,866.64 and 2,987.24 is: 4,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.58 : 6,866.64 = 2,987.24 : x
  2. Step 2: Convert to fraction form
    4,975.58/6,866.64 = 2,987.24/x
  3. Step 3: Cross multiply
    4,975.58x = 6,866.64 × 2,987.24
  4. Step 4: Simplify right side
    4,975.58x = 20,512,301.67
  5. Step 5: Solve for x
    x = 20,512,301.67/4,975.58
  6. Step 6: Final answer
    x = 4,122.60

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1.5x scale

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.