Home / 2,085.19-2,876.23-1,455.49

Finding the Fourth Proportional to 2,085.19, 2,876.23 and 1,455.49

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Solution

The fourth proportional to 2,085.19, 2,876.23 and 1,455.49 is: 2,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.19 : 2,876.23 = 1,455.49 : x
  2. Step 2: Convert to fraction form
    2,085.19/2,876.23 = 1,455.49/x
  3. Step 3: Cross multiply
    2,085.19x = 2,876.23 × 1,455.49
  4. Step 4: Simplify right side
    2,085.19x = 4,186,318.82
  5. Step 5: Solve for x
    x = 4,186,318.82/2,085.19
  6. Step 6: Final answer
    x = 2,007.64

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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.