Home / 5,124.89-7,073.01-2,887.19

Finding the Fourth Proportional to 5,124.89, 7,073.01 and 2,887.19

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Solution

The fourth proportional to 5,124.89, 7,073.01 and 2,887.19 is: 3,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.89 : 7,073.01 = 2,887.19 : x
  2. Step 2: Convert to fraction form
    5,124.89/7,073.01 = 2,887.19/x
  3. Step 3: Cross multiply
    5,124.89x = 7,073.01 × 2,887.19
  4. Step 4: Simplify right side
    5,124.89x = 20,421,141.42
  5. Step 5: Solve for x
    x = 20,421,141.42/5,124.89
  6. Step 6: Final answer
    x = 3,984.70

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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.