Home / 2,921.07-4,381.62-2,487.36

Finding the Fourth Proportional to 2,921.07, 4,381.62 and 2,487.36

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Solution

The fourth proportional to 2,921.07, 4,381.62 and 2,487.36 is: 3,731.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.07 : 4,381.62 = 2,487.36 : x
  2. Step 2: Convert to fraction form
    2,921.07/4,381.62 = 2,487.36/x
  3. Step 3: Cross multiply
    2,921.07x = 4,381.62 × 2,487.36
  4. Step 4: Simplify right side
    2,921.07x = 10,898,666.32
  5. Step 5: Solve for x
    x = 10,898,666.32/2,921.07
  6. Step 6: Final answer
    x = 3,731.05

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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.