Home / 5,176.02-7,142.76-2,818.10

Finding the Fourth Proportional to 5,176.02, 7,142.76 and 2,818.10

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Solution

The fourth proportional to 5,176.02, 7,142.76 and 2,818.10 is: 3,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.02 : 7,142.76 = 2,818.10 : x
  2. Step 2: Convert to fraction form
    5,176.02/7,142.76 = 2,818.10/x
  3. Step 3: Cross multiply
    5,176.02x = 7,142.76 × 2,818.10
  4. Step 4: Simplify right side
    5,176.02x = 20,129,011.96
  5. Step 5: Solve for x
    x = 20,129,011.96/5,176.02
  6. Step 6: Final answer
    x = 3,888.90

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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.