Home / 3,261.84-4,501.98-2,140.80

Finding the Fourth Proportional to 3,261.84, 4,501.98 and 2,140.80

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Solution

The fourth proportional to 3,261.84, 4,501.98 and 2,140.80 is: 2,954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.84 : 4,501.98 = 2,140.80 : x
  2. Step 2: Convert to fraction form
    3,261.84/4,501.98 = 2,140.80/x
  3. Step 3: Cross multiply
    3,261.84x = 4,501.98 × 2,140.80
  4. Step 4: Simplify right side
    3,261.84x = 9,637,838.78
  5. Step 5: Solve for x
    x = 9,637,838.78/3,261.84
  6. Step 6: Final answer
    x = 2,954.72

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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.