Home / 6,513.39-8,988.41-3,529.05

Finding the Fourth Proportional to 6,513.39, 8,988.41 and 3,529.05

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Solution

The fourth proportional to 6,513.39, 8,988.41 and 3,529.05 is: 4,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.39 : 8,988.41 = 3,529.05 : x
  2. Step 2: Convert to fraction form
    6,513.39/8,988.41 = 3,529.05/x
  3. Step 3: Cross multiply
    6,513.39x = 8,988.41 × 3,529.05
  4. Step 4: Simplify right side
    6,513.39x = 31,720,530.67
  5. Step 5: Solve for x
    x = 31,720,530.67/6,513.39
  6. Step 6: Final answer
    x = 4,870.05

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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.