Home / 4,080.72-5,631.12-2,402.40

Finding the Fourth Proportional to 4,080.72, 5,631.12 and 2,402.40

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Solution

The fourth proportional to 4,080.72, 5,631.12 and 2,402.40 is: 3,315.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.72 : 5,631.12 = 2,402.40 : x
  2. Step 2: Convert to fraction form
    4,080.72/5,631.12 = 2,402.40/x
  3. Step 3: Cross multiply
    4,080.72x = 5,631.12 × 2,402.40
  4. Step 4: Simplify right side
    4,080.72x = 13,528,202.69
  5. Step 5: Solve for x
    x = 13,528,202.69/4,080.72
  6. Step 6: Final answer
    x = 3,315.15

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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.