Home / 1,610.58-2,219.49-1,085.70

Finding the Fourth Proportional to 1,610.58, 2,219.49 and 1,085.70

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Solution

The fourth proportional to 1,610.58, 2,219.49 and 1,085.70 is: 1,496.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.58 : 2,219.49 = 1,085.70 : x
  2. Step 2: Convert to fraction form
    1,610.58/2,219.49 = 1,085.70/x
  3. Step 3: Cross multiply
    1,610.58x = 2,219.49 × 1,085.70
  4. Step 4: Simplify right side
    1,610.58x = 2,409,700.29
  5. Step 5: Solve for x
    x = 2,409,700.29/1,610.58
  6. Step 6: Final answer
    x = 1,496.17

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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.