Home / 2,981.63-4,114.91-1,655.60

Finding the Fourth Proportional to 2,981.63, 4,114.91 and 1,655.60

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Solution

The fourth proportional to 2,981.63, 4,114.91 and 1,655.60 is: 2,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.63 : 4,114.91 = 1,655.60 : x
  2. Step 2: Convert to fraction form
    2,981.63/4,114.91 = 1,655.60/x
  3. Step 3: Cross multiply
    2,981.63x = 4,114.91 × 1,655.60
  4. Step 4: Simplify right side
    2,981.63x = 6,812,628.56
  5. Step 5: Solve for x
    x = 6,812,628.56/2,981.63
  6. Step 6: Final answer
    x = 2,284.87

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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.