Home / 1,475.11-2,215.02-859.27

Finding the Fourth Proportional to 1,475.11, 2,215.02 and 859.27

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Solution

The fourth proportional to 1,475.11, 2,215.02 and 859.27 is: 1,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.11 : 2,215.02 = 859.27 : x
  2. Step 2: Convert to fraction form
    1,475.11/2,215.02 = 859.27/x
  3. Step 3: Cross multiply
    1,475.11x = 2,215.02 × 859.27
  4. Step 4: Simplify right side
    1,475.11x = 1,903,284.86
  5. Step 5: Solve for x
    x = 1,903,284.86/1,475.11
  6. Step 6: Final answer
    x = 1,290.27

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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.