Home / 5,176.02-7,142.74-2,818.15

Finding the Fourth Proportional to 5,176.02, 7,142.74 and 2,818.15

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Solution

The fourth proportional to 5,176.02, 7,142.74 and 2,818.15 is: 3,888.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.02 : 7,142.74 = 2,818.15 : x
  2. Step 2: Convert to fraction form
    5,176.02/7,142.74 = 2,818.15/x
  3. Step 3: Cross multiply
    5,176.02x = 7,142.74 × 2,818.15
  4. Step 4: Simplify right side
    5,176.02x = 20,129,312.73
  5. Step 5: Solve for x
    x = 20,129,312.73/5,176.02
  6. Step 6: Final answer
    x = 3,888.96

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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.