Home / 6,290.70-8,681.65-3,772.91

Finding the Fourth Proportional to 6,290.70, 8,681.65 and 3,772.91

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Solution

The fourth proportional to 6,290.70, 8,681.65 and 3,772.91 is: 5,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.70 : 8,681.65 = 3,772.91 : x
  2. Step 2: Convert to fraction form
    6,290.70/8,681.65 = 3,772.91/x
  3. Step 3: Cross multiply
    6,290.70x = 8,681.65 × 3,772.91
  4. Step 4: Simplify right side
    6,290.70x = 32,755,040.69
  5. Step 5: Solve for x
    x = 32,755,040.69/6,290.70
  6. Step 6: Final answer
    x = 5,206.90

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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.