Home / 3,031.34-4,184.36-1,913.01

Finding the Fourth Proportional to 3,031.34, 4,184.36 and 1,913.01

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Solution

The fourth proportional to 3,031.34, 4,184.36 and 1,913.01 is: 2,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.34 : 4,184.36 = 1,913.01 : x
  2. Step 2: Convert to fraction form
    3,031.34/4,184.36 = 1,913.01/x
  3. Step 3: Cross multiply
    3,031.34x = 4,184.36 × 1,913.01
  4. Step 4: Simplify right side
    3,031.34x = 8,004,712.96
  5. Step 5: Solve for x
    x = 8,004,712.96/3,031.34
  6. Step 6: Final answer
    x = 2,640.65

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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.