Home / 1,942.02-2,913.11-555.21

Finding the Fourth Proportional to 1,942.02, 2,913.11 and 555.21

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Solution

The fourth proportional to 1,942.02, 2,913.11 and 555.21 is: 832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.02 : 2,913.11 = 555.21 : x
  2. Step 2: Convert to fraction form
    1,942.02/2,913.11 = 555.21/x
  3. Step 3: Cross multiply
    1,942.02x = 2,913.11 × 555.21
  4. Step 4: Simplify right side
    1,942.02x = 1,617,387.80
  5. Step 5: Solve for x
    x = 1,617,387.80/1,942.02
  6. Step 6: Final answer
    x = 832.84

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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.