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Finding the Fourth Proportional to 2,888.96, 3,987.96 and 2,593.76

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Solution

The fourth proportional to 2,888.96, 3,987.96 and 2,593.76 is: 3,580.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.96 : 3,987.96 = 2,593.76 : x
  2. Step 2: Convert to fraction form
    2,888.96/3,987.96 = 2,593.76/x
  3. Step 3: Cross multiply
    2,888.96x = 3,987.96 × 2,593.76
  4. Step 4: Simplify right side
    2,888.96x = 10,343,811.13
  5. Step 5: Solve for x
    x = 10,343,811.13/2,888.96
  6. Step 6: Final answer
    x = 3,580.46

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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.