Home / 2,124.35-2,930.66-1,415.50

Finding the Fourth Proportional to 2,124.35, 2,930.66 and 1,415.50

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Solution

The fourth proportional to 2,124.35, 2,930.66 and 1,415.50 is: 1,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.35 : 2,930.66 = 1,415.50 : x
  2. Step 2: Convert to fraction form
    2,124.35/2,930.66 = 1,415.50/x
  3. Step 3: Cross multiply
    2,124.35x = 2,930.66 × 1,415.50
  4. Step 4: Simplify right side
    2,124.35x = 4,148,347.07
  5. Step 5: Solve for x
    x = 4,148,347.07/2,124.35
  6. Step 6: Final answer
    x = 1,952.76

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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.