Home / 1,790.79-2,666.12-1,782.13

Finding the Fourth Proportional to 1,790.79, 2,666.12 and 1,782.13

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Solution

The fourth proportional to 1,790.79, 2,666.12 and 1,782.13 is: 2,653.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.79 : 2,666.12 = 1,782.13 : x
  2. Step 2: Convert to fraction form
    1,790.79/2,666.12 = 1,782.13/x
  3. Step 3: Cross multiply
    1,790.79x = 2,666.12 × 1,782.13
  4. Step 4: Simplify right side
    1,790.79x = 4,751,370.23
  5. Step 5: Solve for x
    x = 4,751,370.23/1,790.79
  6. Step 6: Final answer
    x = 2,653.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.