Home / 1,475.16-2,206.14-1,311.64

Finding the Fourth Proportional to 1,475.16, 2,206.14 and 1,311.64

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Solution

The fourth proportional to 1,475.16, 2,206.14 and 1,311.64 is: 1,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.16 : 2,206.14 = 1,311.64 : x
  2. Step 2: Convert to fraction form
    1,475.16/2,206.14 = 1,311.64/x
  3. Step 3: Cross multiply
    1,475.16x = 2,206.14 × 1,311.64
  4. Step 4: Simplify right side
    1,475.16x = 2,893,663.45
  5. Step 5: Solve for x
    x = 2,893,663.45/1,475.16
  6. Step 6: Final answer
    x = 1,961.59

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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.