Home / 1,491.38-2,056.02-966.50

Finding the Fourth Proportional to 1,491.38, 2,056.02 and 966.50

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Solution

The fourth proportional to 1,491.38, 2,056.02 and 966.50 is: 1,332.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.38 : 2,056.02 = 966.50 : x
  2. Step 2: Convert to fraction form
    1,491.38/2,056.02 = 966.50/x
  3. Step 3: Cross multiply
    1,491.38x = 2,056.02 × 966.50
  4. Step 4: Simplify right side
    1,491.38x = 1,987,143.33
  5. Step 5: Solve for x
    x = 1,987,143.33/1,491.38
  6. Step 6: Final answer
    x = 1,332.42

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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.