Home / 6,428.77-8,871.65-3,596.13

Finding the Fourth Proportional to 6,428.77, 8,871.65 and 3,596.13

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Solution

The fourth proportional to 6,428.77, 8,871.65 and 3,596.13 is: 4,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.77 : 8,871.65 = 3,596.13 : x
  2. Step 2: Convert to fraction form
    6,428.77/8,871.65 = 3,596.13/x
  3. Step 3: Cross multiply
    6,428.77x = 8,871.65 × 3,596.13
  4. Step 4: Simplify right side
    6,428.77x = 31,903,615.70
  5. Step 5: Solve for x
    x = 31,903,615.70/6,428.77
  6. Step 6: Final answer
    x = 4,962.63

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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.