Home / 3,389.65-4,671.37-2,642.42

Finding the Fourth Proportional to 3,389.65, 4,671.37 and 2,642.42

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Solution

The fourth proportional to 3,389.65, 4,671.37 and 2,642.42 is: 3,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.65 : 4,671.37 = 2,642.42 : x
  2. Step 2: Convert to fraction form
    3,389.65/4,671.37 = 2,642.42/x
  3. Step 3: Cross multiply
    3,389.65x = 4,671.37 × 2,642.42
  4. Step 4: Simplify right side
    3,389.65x = 12,343,736.50
  5. Step 5: Solve for x
    x = 12,343,736.50/3,389.65
  6. Step 6: Final answer
    x = 3,641.60

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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.