Home / 6,512.40-8,987.04-3,717.84

Finding the Fourth Proportional to 6,512.40, 8,987.04 and 3,717.84

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Solution

The fourth proportional to 6,512.40, 8,987.04 and 3,717.84 is: 5,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.40 : 8,987.04 = 3,717.84 : x
  2. Step 2: Convert to fraction form
    6,512.40/8,987.04 = 3,717.84/x
  3. Step 3: Cross multiply
    6,512.40x = 8,987.04 × 3,717.84
  4. Step 4: Simplify right side
    6,512.40x = 33,412,376.79
  5. Step 5: Solve for x
    x = 33,412,376.79/6,512.40
  6. Step 6: Final answer
    x = 5,130.58

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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.