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Finding the Fourth Proportional to 1,457.34, 2,186.32 and 484.12

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Solution

The fourth proportional to 1,457.34, 2,186.32 and 484.12 is: 726.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.34 : 2,186.32 = 484.12 : x
  2. Step 2: Convert to fraction form
    1,457.34/2,186.32 = 484.12/x
  3. Step 3: Cross multiply
    1,457.34x = 2,186.32 × 484.12
  4. Step 4: Simplify right side
    1,457.34x = 1,058,441.24
  5. Step 5: Solve for x
    x = 1,058,441.24/1,457.34
  6. Step 6: Final answer
    x = 726.28

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Double scale
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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.