Home / 3,057.56-4,219.02-1,781.10

Finding the Fourth Proportional to 3,057.56, 4,219.02 and 1,781.10

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Solution

The fourth proportional to 3,057.56, 4,219.02 and 1,781.10 is: 2,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.56 : 4,219.02 = 1,781.10 : x
  2. Step 2: Convert to fraction form
    3,057.56/4,219.02 = 1,781.10/x
  3. Step 3: Cross multiply
    3,057.56x = 4,219.02 × 1,781.10
  4. Step 4: Simplify right side
    3,057.56x = 7,514,496.52
  5. Step 5: Solve for x
    x = 7,514,496.52/3,057.56
  6. Step 6: Final answer
    x = 2,457.68

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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.