Home / 3,014.10-4,159.72-1,687.80

Finding the Fourth Proportional to 3,014.10, 4,159.72 and 1,687.80

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Solution

The fourth proportional to 3,014.10, 4,159.72 and 1,687.80 is: 2,329.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.10 : 4,159.72 = 1,687.80 : x
  2. Step 2: Convert to fraction form
    3,014.10/4,159.72 = 1,687.80/x
  3. Step 3: Cross multiply
    3,014.10x = 4,159.72 × 1,687.80
  4. Step 4: Simplify right side
    3,014.10x = 7,020,775.42
  5. Step 5: Solve for x
    x = 7,020,775.42/3,014.10
  6. Step 6: Final answer
    x = 2,329.31

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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.