Home / 2,921.04-4,031.39-1,662.40

Finding the Fourth Proportional to 2,921.04, 4,031.39 and 1,662.40

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Solution

The fourth proportional to 2,921.04, 4,031.39 and 1,662.40 is: 2,294.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.04 : 4,031.39 = 1,662.40 : x
  2. Step 2: Convert to fraction form
    2,921.04/4,031.39 = 1,662.40/x
  3. Step 3: Cross multiply
    2,921.04x = 4,031.39 × 1,662.40
  4. Step 4: Simplify right side
    2,921.04x = 6,701,794.89
  5. Step 5: Solve for x
    x = 6,701,794.89/2,921.04
  6. Step 6: Final answer
    x = 2,294.32

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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.