Home / 2,119.84-2,925.28-1,175.56

Finding the Fourth Proportional to 2,119.84, 2,925.28 and 1,175.56

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Solution

The fourth proportional to 2,119.84, 2,925.28 and 1,175.56 is: 1,622.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.84 : 2,925.28 = 1,175.56 : x
  2. Step 2: Convert to fraction form
    2,119.84/2,925.28 = 1,175.56/x
  3. Step 3: Cross multiply
    2,119.84x = 2,925.28 × 1,175.56
  4. Step 4: Simplify right side
    2,119.84x = 3,438,842.16
  5. Step 5: Solve for x
    x = 3,438,842.16/2,119.84
  6. Step 6: Final answer
    x = 1,622.22

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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.