Home / 5,125.79-7,073.63-2,887.46

Finding the Fourth Proportional to 5,125.79, 7,073.63 and 2,887.46

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Solution

The fourth proportional to 5,125.79, 7,073.63 and 2,887.46 is: 3,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.79 : 7,073.63 = 2,887.46 : x
  2. Step 2: Convert to fraction form
    5,125.79/7,073.63 = 2,887.46/x
  3. Step 3: Cross multiply
    5,125.79x = 7,073.63 × 2,887.46
  4. Step 4: Simplify right side
    5,125.79x = 20,424,823.68
  5. Step 5: Solve for x
    x = 20,424,823.68/5,125.79
  6. Step 6: Final answer
    x = 3,984.72

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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.