Home / 3,428.02-5,136.88-2,646.84

Finding the Fourth Proportional to 3,428.02, 5,136.88 and 2,646.84

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Solution

The fourth proportional to 3,428.02, 5,136.88 and 2,646.84 is: 3,966.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.02 : 5,136.88 = 2,646.84 : x
  2. Step 2: Convert to fraction form
    3,428.02/5,136.88 = 2,646.84/x
  3. Step 3: Cross multiply
    3,428.02x = 5,136.88 × 2,646.84
  4. Step 4: Simplify right side
    3,428.02x = 13,596,499.46
  5. Step 5: Solve for x
    x = 13,596,499.46/3,428.02
  6. Step 6: Final answer
    x = 3,966.28

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1.5x scale

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.