Home / 2,875.09-4,311.64-1,393.45

Finding the Fourth Proportional to 2,875.09, 4,311.64 and 1,393.45

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Solution

The fourth proportional to 2,875.09, 4,311.64 and 1,393.45 is: 2,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.09 : 4,311.64 = 1,393.45 : x
  2. Step 2: Convert to fraction form
    2,875.09/4,311.64 = 1,393.45/x
  3. Step 3: Cross multiply
    2,875.09x = 4,311.64 × 1,393.45
  4. Step 4: Simplify right side
    2,875.09x = 6,008,040.50
  5. Step 5: Solve for x
    x = 6,008,040.50/2,875.09
  6. Step 6: Final answer
    x = 2,089.69

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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.