Home / 6,288.84-8,658.72-5,113.80

Finding the Fourth Proportional to 6,288.84, 8,658.72 and 5,113.80

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Solution

The fourth proportional to 6,288.84, 8,658.72 and 5,113.80 is: 7,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.84 : 8,658.72 = 5,113.80 : x
  2. Step 2: Convert to fraction form
    6,288.84/8,658.72 = 5,113.80/x
  3. Step 3: Cross multiply
    6,288.84x = 8,658.72 × 5,113.80
  4. Step 4: Simplify right side
    6,288.84x = 44,278,962.34
  5. Step 5: Solve for x
    x = 44,278,962.34/6,288.84
  6. Step 6: Final answer
    x = 7,040.88

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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.