Home / 2,771.02-4,157.40-1,210.30

Finding the Fourth Proportional to 2,771.02, 4,157.40 and 1,210.30

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Solution

The fourth proportional to 2,771.02, 4,157.40 and 1,210.30 is: 1,815.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.02 : 4,157.40 = 1,210.30 : x
  2. Step 2: Convert to fraction form
    2,771.02/4,157.40 = 1,210.30/x
  3. Step 3: Cross multiply
    2,771.02x = 4,157.40 × 1,210.30
  4. Step 4: Simplify right side
    2,771.02x = 5,031,701.22
  5. Step 5: Solve for x
    x = 5,031,701.22/2,771.02
  6. Step 6: Final answer
    x = 1,815.83

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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.