Home / 2,864.76-4,298.40-1,405.32

Finding the Fourth Proportional to 2,864.76, 4,298.40 and 1,405.32

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Solution

The fourth proportional to 2,864.76, 4,298.40 and 1,405.32 is: 2,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.76 : 4,298.40 = 1,405.32 : x
  2. Step 2: Convert to fraction form
    2,864.76/4,298.40 = 1,405.32/x
  3. Step 3: Cross multiply
    2,864.76x = 4,298.40 × 1,405.32
  4. Step 4: Simplify right side
    2,864.76x = 6,040,627.49
  5. Step 5: Solve for x
    x = 6,040,627.49/2,864.76
  6. Step 6: Final answer
    x = 2,108.60

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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.