Home / 2,331.10-3,497.10-870.20

Finding the Fourth Proportional to 2,331.10, 3,497.10 and 870.20

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Solution

The fourth proportional to 2,331.10, 3,497.10 and 870.20 is: 1,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.10 : 3,497.10 = 870.20 : x
  2. Step 2: Convert to fraction form
    2,331.10/3,497.10 = 870.20/x
  3. Step 3: Cross multiply
    2,331.10x = 3,497.10 × 870.20
  4. Step 4: Simplify right side
    2,331.10x = 3,043,176.42
  5. Step 5: Solve for x
    x = 3,043,176.42/2,331.10
  6. Step 6: Final answer
    x = 1,305.47

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1.5x scale

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.