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Finding the Fourth Proportional to 1,582.02, 2,182.50 and 992.44

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Solution

The fourth proportional to 1,582.02, 2,182.50 and 992.44 is: 1,369.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.02 : 2,182.50 = 992.44 : x
  2. Step 2: Convert to fraction form
    1,582.02/2,182.50 = 992.44/x
  3. Step 3: Cross multiply
    1,582.02x = 2,182.50 × 992.44
  4. Step 4: Simplify right side
    1,582.02x = 2,166,000.30
  5. Step 5: Solve for x
    x = 2,166,000.30/1,582.02
  6. Step 6: Final answer
    x = 1,369.14

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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.