Home / 2,457.53-3,686.55-1,418.70

Finding the Fourth Proportional to 2,457.53, 3,686.55 and 1,418.70

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Solution

The fourth proportional to 2,457.53, 3,686.55 and 1,418.70 is: 2,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.53 : 3,686.55 = 1,418.70 : x
  2. Step 2: Convert to fraction form
    2,457.53/3,686.55 = 1,418.70/x
  3. Step 3: Cross multiply
    2,457.53x = 3,686.55 × 1,418.70
  4. Step 4: Simplify right side
    2,457.53x = 5,230,108.49
  5. Step 5: Solve for x
    x = 5,230,108.49/2,457.53
  6. Step 6: Final answer
    x = 2,128.20

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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.