Home / 3,562.12-4,915.62-1,990.24

Finding the Fourth Proportional to 3,562.12, 4,915.62 and 1,990.24

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Solution

The fourth proportional to 3,562.12, 4,915.62 and 1,990.24 is: 2,746.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.12 : 4,915.62 = 1,990.24 : x
  2. Step 2: Convert to fraction form
    3,562.12/4,915.62 = 1,990.24/x
  3. Step 3: Cross multiply
    3,562.12x = 4,915.62 × 1,990.24
  4. Step 4: Simplify right side
    3,562.12x = 9,783,263.55
  5. Step 5: Solve for x
    x = 9,783,263.55/3,562.12
  6. Step 6: Final answer
    x = 2,746.47

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.