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Finding the Fourth Proportional to 2,457.77, 3,686.65 and 726.26

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Solution

The fourth proportional to 2,457.77, 3,686.65 and 726.26 is: 1,089.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.77 : 3,686.65 = 726.26 : x
  2. Step 2: Convert to fraction form
    2,457.77/3,686.65 = 726.26/x
  3. Step 3: Cross multiply
    2,457.77x = 3,686.65 × 726.26
  4. Step 4: Simplify right side
    2,457.77x = 2,677,446.18
  5. Step 5: Solve for x
    x = 2,677,446.18/2,457.77
  6. Step 6: Final answer
    x = 1,089.38

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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.