Home / 2,235.78-3,353.58-1,140.12

Finding the Fourth Proportional to 2,235.78, 3,353.58 and 1,140.12

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Solution

The fourth proportional to 2,235.78, 3,353.58 and 1,140.12 is: 1,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.78 : 3,353.58 = 1,140.12 : x
  2. Step 2: Convert to fraction form
    2,235.78/3,353.58 = 1,140.12/x
  3. Step 3: Cross multiply
    2,235.78x = 3,353.58 × 1,140.12
  4. Step 4: Simplify right side
    2,235.78x = 3,823,483.63
  5. Step 5: Solve for x
    x = 3,823,483.63/2,235.78
  6. Step 6: Final answer
    x = 1,710.13

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Half scale
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Double scale
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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.