Home / 1,781.02-2,457.21-1,034.70

Finding the Fourth Proportional to 1,781.02, 2,457.21 and 1,034.70

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Solution

The fourth proportional to 1,781.02, 2,457.21 and 1,034.70 is: 1,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.02 : 2,457.21 = 1,034.70 : x
  2. Step 2: Convert to fraction form
    1,781.02/2,457.21 = 1,034.70/x
  3. Step 3: Cross multiply
    1,781.02x = 2,457.21 × 1,034.70
  4. Step 4: Simplify right side
    1,781.02x = 2,542,475.19
  5. Step 5: Solve for x
    x = 2,542,475.19/1,781.02
  6. Step 6: Final answer
    x = 1,427.54

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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.