Home / 6,513.40-8,987.96-3,681.03

Finding the Fourth Proportional to 6,513.40, 8,987.96 and 3,681.03

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Solution

The fourth proportional to 6,513.40, 8,987.96 and 3,681.03 is: 5,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.40 : 8,987.96 = 3,681.03 : x
  2. Step 2: Convert to fraction form
    6,513.40/8,987.96 = 3,681.03/x
  3. Step 3: Cross multiply
    6,513.40x = 8,987.96 × 3,681.03
  4. Step 4: Simplify right side
    6,513.40x = 33,084,950.40
  5. Step 5: Solve for x
    x = 33,084,950.40/6,513.40
  6. Step 6: Final answer
    x = 5,079.52

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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.