Home / 5,457.91-7,531.97-3,100.07

Finding the Fourth Proportional to 5,457.91, 7,531.97 and 3,100.07

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Solution

The fourth proportional to 5,457.91, 7,531.97 and 3,100.07 is: 4,278.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.91 : 7,531.97 = 3,100.07 : x
  2. Step 2: Convert to fraction form
    5,457.91/7,531.97 = 3,100.07/x
  3. Step 3: Cross multiply
    5,457.91x = 7,531.97 × 3,100.07
  4. Step 4: Simplify right side
    5,457.91x = 23,349,581.08
  5. Step 5: Solve for x
    x = 23,349,581.08/5,457.91
  6. Step 6: Final answer
    x = 4,278.12

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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.