Home / 1,705.02-2,349.75-1,425.30

Finding the Fourth Proportional to 1,705.02, 2,349.75 and 1,425.30

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Solution

The fourth proportional to 1,705.02, 2,349.75 and 1,425.30 is: 1,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.02 : 2,349.75 = 1,425.30 : x
  2. Step 2: Convert to fraction form
    1,705.02/2,349.75 = 1,425.30/x
  3. Step 3: Cross multiply
    1,705.02x = 2,349.75 × 1,425.30
  4. Step 4: Simplify right side
    1,705.02x = 3,349,098.68
  5. Step 5: Solve for x
    x = 3,349,098.68/1,705.02
  6. Step 6: Final answer
    x = 1,964.26

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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.