Home / 1,432.26-2,157.23-1,330.86

Finding the Fourth Proportional to 1,432.26, 2,157.23 and 1,330.86

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Solution

The fourth proportional to 1,432.26, 2,157.23 and 1,330.86 is: 2,004.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.26 : 2,157.23 = 1,330.86 : x
  2. Step 2: Convert to fraction form
    1,432.26/2,157.23 = 1,330.86/x
  3. Step 3: Cross multiply
    1,432.26x = 2,157.23 × 1,330.86
  4. Step 4: Simplify right side
    1,432.26x = 2,870,964.46
  5. Step 5: Solve for x
    x = 2,870,964.46/1,432.26
  6. Step 6: Final answer
    x = 2,004.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.