Home / 2,087.35-2,880.53-1,155.85

Finding the Fourth Proportional to 2,087.35, 2,880.53 and 1,155.85

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Solution

The fourth proportional to 2,087.35, 2,880.53 and 1,155.85 is: 1,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.35 : 2,880.53 = 1,155.85 : x
  2. Step 2: Convert to fraction form
    2,087.35/2,880.53 = 1,155.85/x
  3. Step 3: Cross multiply
    2,087.35x = 2,880.53 × 1,155.85
  4. Step 4: Simplify right side
    2,087.35x = 3,329,456.29
  5. Step 5: Solve for x
    x = 3,329,456.29/2,087.35
  6. Step 6: Final answer
    x = 1,595.07

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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.