Home / 6,513.21-8,988.27-3,529.06

Finding the Fourth Proportional to 6,513.21, 8,988.27 and 3,529.06

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Solution

The fourth proportional to 6,513.21, 8,988.27 and 3,529.06 is: 4,870.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.21 : 8,988.27 = 3,529.06 : x
  2. Step 2: Convert to fraction form
    6,513.21/8,988.27 = 3,529.06/x
  3. Step 3: Cross multiply
    6,513.21x = 8,988.27 × 3,529.06
  4. Step 4: Simplify right side
    6,513.21x = 31,720,144.13
  5. Step 5: Solve for x
    x = 31,720,144.13/6,513.21
  6. Step 6: Final answer
    x = 4,870.12

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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.