Home / 6,513.51-8,988.22-3,681.05

Finding the Fourth Proportional to 6,513.51, 8,988.22 and 3,681.05

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Solution

The fourth proportional to 6,513.51, 8,988.22 and 3,681.05 is: 5,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.51 : 8,988.22 = 3,681.05 : x
  2. Step 2: Convert to fraction form
    6,513.51/8,988.22 = 3,681.05/x
  3. Step 3: Cross multiply
    6,513.51x = 8,988.22 × 3,681.05
  4. Step 4: Simplify right side
    6,513.51x = 33,086,026.19
  5. Step 5: Solve for x
    x = 33,086,026.19/6,513.51
  6. Step 6: Final answer
    x = 5,079.60

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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.