Home / 2,124.84-2,931.99-1,180.56

Finding the Fourth Proportional to 2,124.84, 2,931.99 and 1,180.56

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Solution

The fourth proportional to 2,124.84, 2,931.99 and 1,180.56 is: 1,629.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.84 : 2,931.99 = 1,180.56 : x
  2. Step 2: Convert to fraction form
    2,124.84/2,931.99 = 1,180.56/x
  3. Step 3: Cross multiply
    2,124.84x = 2,931.99 × 1,180.56
  4. Step 4: Simplify right side
    2,124.84x = 3,461,390.11
  5. Step 5: Solve for x
    x = 3,461,390.11/2,124.84
  6. Step 6: Final answer
    x = 1,629.01

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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.