Home / 4,987.02-7,479.84-2,646

Finding the Fourth Proportional to 4,987.02, 7,479.84 and 2,646

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Solution

The fourth proportional to 4,987.02, 7,479.84 and 2,646 is: 3,968.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.02 : 7,479.84 = 2,646 : x
  2. Step 2: Convert to fraction form
    4,987.02/7,479.84 = 2,646/x
  3. Step 3: Cross multiply
    4,987.02x = 7,479.84 × 2,646
  4. Step 4: Simplify right side
    4,987.02x = 19,791,656.64
  5. Step 5: Solve for x
    x = 19,791,656.64/4,987.02
  6. Step 6: Final answer
    x = 3,968.63

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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.