Home / 4,720.02-7,072.65-2,985

Finding the Fourth Proportional to 4,720.02, 7,072.65 and 2,985

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Solution

The fourth proportional to 4,720.02, 7,072.65 and 2,985 is: 4,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.02 : 7,072.65 = 2,985 : x
  2. Step 2: Convert to fraction form
    4,720.02/7,072.65 = 2,985/x
  3. Step 3: Cross multiply
    4,720.02x = 7,072.65 × 2,985
  4. Step 4: Simplify right side
    4,720.02x = 21,111,860.25
  5. Step 5: Solve for x
    x = 21,111,860.25/4,720.02
  6. Step 6: Final answer
    x = 4,472.83

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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.