Home / 3,083.40-4,254.48-1,756.76

Finding the Fourth Proportional to 3,083.40, 4,254.48 and 1,756.76

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Solution

The fourth proportional to 3,083.40, 4,254.48 and 1,756.76 is: 2,423.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.40 : 4,254.48 = 1,756.76 : x
  2. Step 2: Convert to fraction form
    3,083.40/4,254.48 = 1,756.76/x
  3. Step 3: Cross multiply
    3,083.40x = 4,254.48 × 1,756.76
  4. Step 4: Simplify right side
    3,083.40x = 7,474,100.28
  5. Step 5: Solve for x
    x = 7,474,100.28/3,083.40
  6. Step 6: Final answer
    x = 2,423.98

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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.