Home / 2,930.28-4,042.50-1,750.76

Finding the Fourth Proportional to 2,930.28, 4,042.50 and 1,750.76

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Solution

The fourth proportional to 2,930.28, 4,042.50 and 1,750.76 is: 2,415.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.28 : 4,042.50 = 1,750.76 : x
  2. Step 2: Convert to fraction form
    2,930.28/4,042.50 = 1,750.76/x
  3. Step 3: Cross multiply
    2,930.28x = 4,042.50 × 1,750.76
  4. Step 4: Simplify right side
    2,930.28x = 7,077,447.30
  5. Step 5: Solve for x
    x = 7,077,447.30/2,930.28
  6. Step 6: Final answer
    x = 2,415.28

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1.5x scale

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.