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Finding the Fourth Proportional to 1,887.19, 2,604.32 and 1,059.19

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Solution

The fourth proportional to 1,887.19, 2,604.32 and 1,059.19 is: 1,461.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.19 : 2,604.32 = 1,059.19 : x
  2. Step 2: Convert to fraction form
    1,887.19/2,604.32 = 1,059.19/x
  3. Step 3: Cross multiply
    1,887.19x = 2,604.32 × 1,059.19
  4. Step 4: Simplify right side
    1,887.19x = 2,758,461.87
  5. Step 5: Solve for x
    x = 2,758,461.87/1,887.19
  6. Step 6: Final answer
    x = 1,461.68

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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.