Home / 1,457.04-2,185.84-483.20

Finding the Fourth Proportional to 1,457.04, 2,185.84 and 483.20

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Solution

The fourth proportional to 1,457.04, 2,185.84 and 483.20 is: 724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.04 : 2,185.84 = 483.20 : x
  2. Step 2: Convert to fraction form
    1,457.04/2,185.84 = 483.20/x
  3. Step 3: Cross multiply
    1,457.04x = 2,185.84 × 483.20
  4. Step 4: Simplify right side
    1,457.04x = 1,056,197.89
  5. Step 5: Solve for x
    x = 1,056,197.89/1,457.04
  6. Step 6: Final answer
    x = 724.89

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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.