Home / 4,679.13-6,457.55-2,689.77

Finding the Fourth Proportional to 4,679.13, 6,457.55 and 2,689.77

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Solution

The fourth proportional to 4,679.13, 6,457.55 and 2,689.77 is: 3,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.13 : 6,457.55 = 2,689.77 : x
  2. Step 2: Convert to fraction form
    4,679.13/6,457.55 = 2,689.77/x
  3. Step 3: Cross multiply
    4,679.13x = 6,457.55 × 2,689.77
  4. Step 4: Simplify right side
    4,679.13x = 17,369,324.26
  5. Step 5: Solve for x
    x = 17,369,324.26/4,679.13
  6. Step 6: Final answer
    x = 3,712.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.