Home / 2,431.36-3,647.04-1,943.76

Finding the Fourth Proportional to 2,431.36, 3,647.04 and 1,943.76

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Solution

The fourth proportional to 2,431.36, 3,647.04 and 1,943.76 is: 2,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.36 : 3,647.04 = 1,943.76 : x
  2. Step 2: Convert to fraction form
    2,431.36/3,647.04 = 1,943.76/x
  3. Step 3: Cross multiply
    2,431.36x = 3,647.04 × 1,943.76
  4. Step 4: Simplify right side
    2,431.36x = 7,088,970.47
  5. Step 5: Solve for x
    x = 7,088,970.47/2,431.36
  6. Step 6: Final answer
    x = 2,915.64

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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.