Home / 1,609.79-2,219.32-1,376.24

Finding the Fourth Proportional to 1,609.79, 2,219.32 and 1,376.24

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Solution

The fourth proportional to 1,609.79, 2,219.32 and 1,376.24 is: 1,897.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.79 : 2,219.32 = 1,376.24 : x
  2. Step 2: Convert to fraction form
    1,609.79/2,219.32 = 1,376.24/x
  3. Step 3: Cross multiply
    1,609.79x = 2,219.32 × 1,376.24
  4. Step 4: Simplify right side
    1,609.79x = 3,054,326.36
  5. Step 5: Solve for x
    x = 3,054,326.36/1,609.79
  6. Step 6: Final answer
    x = 1,897.35

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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.