Home / 1,861.97-2,569.55-1,054.35

Finding the Fourth Proportional to 1,861.97, 2,569.55 and 1,054.35

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Solution

The fourth proportional to 1,861.97, 2,569.55 and 1,054.35 is: 1,455.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.97 : 2,569.55 = 1,054.35 : x
  2. Step 2: Convert to fraction form
    1,861.97/2,569.55 = 1,054.35/x
  3. Step 3: Cross multiply
    1,861.97x = 2,569.55 × 1,054.35
  4. Step 4: Simplify right side
    1,861.97x = 2,709,199.77
  5. Step 5: Solve for x
    x = 2,709,199.77/1,861.97
  6. Step 6: Final answer
    x = 1,455.02

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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.