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Finding the Fourth Proportional to 2,708.51, 4,062.29 and 760.19

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Solution

The fourth proportional to 2,708.51, 4,062.29 and 760.19 is: 1,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.51 : 4,062.29 = 760.19 : x
  2. Step 2: Convert to fraction form
    2,708.51/4,062.29 = 760.19/x
  3. Step 3: Cross multiply
    2,708.51x = 4,062.29 × 760.19
  4. Step 4: Simplify right side
    2,708.51x = 3,088,088.12
  5. Step 5: Solve for x
    x = 3,088,088.12/2,708.51
  6. Step 6: Final answer
    x = 1,140.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.