Home / 2,235.10-3,084.81-1,240.70

Finding the Fourth Proportional to 2,235.10, 3,084.81 and 1,240.70

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Solution

The fourth proportional to 2,235.10, 3,084.81 and 1,240.70 is: 1,712.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.10 : 3,084.81 = 1,240.70 : x
  2. Step 2: Convert to fraction form
    2,235.10/3,084.81 = 1,240.70/x
  3. Step 3: Cross multiply
    2,235.10x = 3,084.81 × 1,240.70
  4. Step 4: Simplify right side
    2,235.10x = 3,827,323.77
  5. Step 5: Solve for x
    x = 3,827,323.77/2,235.10
  6. Step 6: Final answer
    x = 1,712.37

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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.