Home / 3,149.98-4,341.61-2,153.53

Finding the Fourth Proportional to 3,149.98, 4,341.61 and 2,153.53

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Solution

The fourth proportional to 3,149.98, 4,341.61 and 2,153.53 is: 2,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.98 : 4,341.61 = 2,153.53 : x
  2. Step 2: Convert to fraction form
    3,149.98/4,341.61 = 2,153.53/x
  3. Step 3: Cross multiply
    3,149.98x = 4,341.61 × 2,153.53
  4. Step 4: Simplify right side
    3,149.98x = 9,349,795.50
  5. Step 5: Solve for x
    x = 9,349,795.50/3,149.98
  6. Step 6: Final answer
    x = 2,968.21

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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.