Home / 3,137.79-4,330.76-2,075.61

Finding the Fourth Proportional to 3,137.79, 4,330.76 and 2,075.61

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Solution

The fourth proportional to 3,137.79, 4,330.76 and 2,075.61 is: 2,864.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.79 : 4,330.76 = 2,075.61 : x
  2. Step 2: Convert to fraction form
    3,137.79/4,330.76 = 2,075.61/x
  3. Step 3: Cross multiply
    3,137.79x = 4,330.76 × 2,075.61
  4. Step 4: Simplify right side
    3,137.79x = 8,988,958.39
  5. Step 5: Solve for x
    x = 8,988,958.39/3,137.79
  6. Step 6: Final answer
    x = 2,864.74

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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.