Home / 1,740.63-2,403.29-1,215.75

Finding the Fourth Proportional to 1,740.63, 2,403.29 and 1,215.75

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Solution

The fourth proportional to 1,740.63, 2,403.29 and 1,215.75 is: 1,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.63 : 2,403.29 = 1,215.75 : x
  2. Step 2: Convert to fraction form
    1,740.63/2,403.29 = 1,215.75/x
  3. Step 3: Cross multiply
    1,740.63x = 2,403.29 × 1,215.75
  4. Step 4: Simplify right side
    1,740.63x = 2,921,799.82
  5. Step 5: Solve for x
    x = 2,921,799.82/1,740.63
  6. Step 6: Final answer
    x = 1,678.59

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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.