Home / 2,457.20-3,685.88-702.28

Finding the Fourth Proportional to 2,457.20, 3,685.88 and 702.28

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Solution

The fourth proportional to 2,457.20, 3,685.88 and 702.28 is: 1,053.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.20 : 3,685.88 = 702.28 : x
  2. Step 2: Convert to fraction form
    2,457.20/3,685.88 = 702.28/x
  3. Step 3: Cross multiply
    2,457.20x = 3,685.88 × 702.28
  4. Step 4: Simplify right side
    2,457.20x = 2,588,519.81
  5. Step 5: Solve for x
    x = 2,588,519.81/2,457.20
  6. Step 6: Final answer
    x = 1,053.44

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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.