Home / 1,920.04-2,880.87-1,141.53

Finding the Fourth Proportional to 1,920.04, 2,880.87 and 1,141.53

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Solution

The fourth proportional to 1,920.04, 2,880.87 and 1,141.53 is: 1,712.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.04 : 2,880.87 = 1,141.53 : x
  2. Step 2: Convert to fraction form
    1,920.04/2,880.87 = 1,141.53/x
  3. Step 3: Cross multiply
    1,920.04x = 2,880.87 × 1,141.53
  4. Step 4: Simplify right side
    1,920.04x = 3,288,579.42
  5. Step 5: Solve for x
    x = 3,288,579.42/1,920.04
  6. Step 6: Final answer
    x = 1,712.77

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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.