Home / 1,740.07-2,400.48-1,143.20

Finding the Fourth Proportional to 1,740.07, 2,400.48 and 1,143.20

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Solution

The fourth proportional to 1,740.07, 2,400.48 and 1,143.20 is: 1,577.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.07 : 2,400.48 = 1,143.20 : x
  2. Step 2: Convert to fraction form
    1,740.07/2,400.48 = 1,143.20/x
  3. Step 3: Cross multiply
    1,740.07x = 2,400.48 × 1,143.20
  4. Step 4: Simplify right side
    1,740.07x = 2,744,216.73
  5. Step 5: Solve for x
    x = 2,744,216.73/1,740.07
  6. Step 6: Final answer
    x = 1,577.07

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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.