Home / 5,461.20-8,191.80-2,176.65

Finding the Fourth Proportional to 5,461.20, 8,191.80 and 2,176.65

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Solution

The fourth proportional to 5,461.20, 8,191.80 and 2,176.65 is: 3,264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.20 : 8,191.80 = 2,176.65 : x
  2. Step 2: Convert to fraction form
    5,461.20/8,191.80 = 2,176.65/x
  3. Step 3: Cross multiply
    5,461.20x = 8,191.80 × 2,176.65
  4. Step 4: Simplify right side
    5,461.20x = 17,830,681.47
  5. Step 5: Solve for x
    x = 17,830,681.47/5,461.20
  6. Step 6: Final answer
    x = 3,264.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.