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Finding the Fourth Proportional to 1,457.51, 2,186.31 and 483.58

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Solution

The fourth proportional to 1,457.51, 2,186.31 and 483.58 is: 725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.51 : 2,186.31 = 483.58 : x
  2. Step 2: Convert to fraction form
    1,457.51/2,186.31 = 483.58/x
  3. Step 3: Cross multiply
    1,457.51x = 2,186.31 × 483.58
  4. Step 4: Simplify right side
    1,457.51x = 1,057,260.34
  5. Step 5: Solve for x
    x = 1,057,260.34/1,457.51
  6. Step 6: Final answer
    x = 725.39

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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.