Home / 4,087.51-5,639.31-2,672.01

Finding the Fourth Proportional to 4,087.51, 5,639.31 and 2,672.01

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Solution

The fourth proportional to 4,087.51, 5,639.31 and 2,672.01 is: 3,686.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.51 : 5,639.31 = 2,672.01 : x
  2. Step 2: Convert to fraction form
    4,087.51/5,639.31 = 2,672.01/x
  3. Step 3: Cross multiply
    4,087.51x = 5,639.31 × 2,672.01
  4. Step 4: Simplify right side
    4,087.51x = 15,068,292.71
  5. Step 5: Solve for x
    x = 15,068,292.71/4,087.51
  6. Step 6: Final answer
    x = 3,686.43

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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.