Home / 1,479.42-2,221.65-1,417.50

Finding the Fourth Proportional to 1,479.42, 2,221.65 and 1,417.50

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Solution

The fourth proportional to 1,479.42, 2,221.65 and 1,417.50 is: 2,128.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.42 : 2,221.65 = 1,417.50 : x
  2. Step 2: Convert to fraction form
    1,479.42/2,221.65 = 1,417.50/x
  3. Step 3: Cross multiply
    1,479.42x = 2,221.65 × 1,417.50
  4. Step 4: Simplify right side
    1,479.42x = 3,149,188.88
  5. Step 5: Solve for x
    x = 3,149,188.88/1,479.42
  6. Step 6: Final answer
    x = 2,128.66

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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.