Home / 6,428.11-8,870.18-3,595.34

Finding the Fourth Proportional to 6,428.11, 8,870.18 and 3,595.34

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Solution

The fourth proportional to 6,428.11, 8,870.18 and 3,595.34 is: 4,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.11 : 8,870.18 = 3,595.34 : x
  2. Step 2: Convert to fraction form
    6,428.11/8,870.18 = 3,595.34/x
  3. Step 3: Cross multiply
    6,428.11x = 8,870.18 × 3,595.34
  4. Step 4: Simplify right side
    6,428.11x = 31,891,297.60
  5. Step 5: Solve for x
    x = 31,891,297.60/6,428.11
  6. Step 6: Final answer
    x = 4,961.23

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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.