Home / 6,427.68-8,870.28-3,775.14

Finding the Fourth Proportional to 6,427.68, 8,870.28 and 3,775.14

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Solution

The fourth proportional to 6,427.68, 8,870.28 and 3,775.14 is: 5,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.68 : 8,870.28 = 3,775.14 : x
  2. Step 2: Convert to fraction form
    6,427.68/8,870.28 = 3,775.14/x
  3. Step 3: Cross multiply
    6,427.68x = 8,870.28 × 3,775.14
  4. Step 4: Simplify right side
    6,427.68x = 33,486,548.84
  5. Step 5: Solve for x
    x = 33,486,548.84/6,427.68
  6. Step 6: Final answer
    x = 5,209.74

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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.