Home / 2,955.18-4,431.32-1,722.90

Finding the Fourth Proportional to 2,955.18, 4,431.32 and 1,722.90

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Solution

The fourth proportional to 2,955.18, 4,431.32 and 1,722.90 is: 2,583.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.18 : 4,431.32 = 1,722.90 : x
  2. Step 2: Convert to fraction form
    2,955.18/4,431.32 = 1,722.90/x
  3. Step 3: Cross multiply
    2,955.18x = 4,431.32 × 1,722.90
  4. Step 4: Simplify right side
    2,955.18x = 7,634,721.23
  5. Step 5: Solve for x
    x = 7,634,721.23/2,955.18
  6. Step 6: Final answer
    x = 2,583.50

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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.