Home / 4,722.02-7,075.65-2,987

Finding the Fourth Proportional to 4,722.02, 7,075.65 and 2,987

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Solution

The fourth proportional to 4,722.02, 7,075.65 and 2,987 is: 4,475.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.02 : 7,075.65 = 2,987 : x
  2. Step 2: Convert to fraction form
    4,722.02/7,075.65 = 2,987/x
  3. Step 3: Cross multiply
    4,722.02x = 7,075.65 × 2,987
  4. Step 4: Simplify right side
    4,722.02x = 21,134,966.55
  5. Step 5: Solve for x
    x = 21,134,966.55/4,722.02
  6. Step 6: Final answer
    x = 4,475.83

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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.