Home / 1,550.10-2,140.29-1,084.98

Finding the Fourth Proportional to 1,550.10, 2,140.29 and 1,084.98

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Solution

The fourth proportional to 1,550.10, 2,140.29 and 1,084.98 is: 1,498.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.10 : 2,140.29 = 1,084.98 : x
  2. Step 2: Convert to fraction form
    1,550.10/2,140.29 = 1,084.98/x
  3. Step 3: Cross multiply
    1,550.10x = 2,140.29 × 1,084.98
  4. Step 4: Simplify right side
    1,550.10x = 2,322,171.84
  5. Step 5: Solve for x
    x = 2,322,171.84/1,550.10
  6. Step 6: Final answer
    x = 1,498.08

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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.