Home / 4,871.14-6,722.34-2,775.40

Finding the Fourth Proportional to 4,871.14, 6,722.34 and 2,775.40

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Solution

The fourth proportional to 4,871.14, 6,722.34 and 2,775.40 is: 3,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.14 : 6,722.34 = 2,775.40 : x
  2. Step 2: Convert to fraction form
    4,871.14/6,722.34 = 2,775.40/x
  3. Step 3: Cross multiply
    4,871.14x = 6,722.34 × 2,775.40
  4. Step 4: Simplify right side
    4,871.14x = 18,657,182.44
  5. Step 5: Solve for x
    x = 18,657,182.44/4,871.14
  6. Step 6: Final answer
    x = 3,830.15

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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.