Home / 4,891.51-7,331.76-2,428.10

Finding the Fourth Proportional to 4,891.51, 7,331.76 and 2,428.10

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Solution

The fourth proportional to 4,891.51, 7,331.76 and 2,428.10 is: 3,639.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.51 : 7,331.76 = 2,428.10 : x
  2. Step 2: Convert to fraction form
    4,891.51/7,331.76 = 2,428.10/x
  3. Step 3: Cross multiply
    4,891.51x = 7,331.76 × 2,428.10
  4. Step 4: Simplify right side
    4,891.51x = 17,802,246.46
  5. Step 5: Solve for x
    x = 17,802,246.46/4,891.51
  6. Step 6: Final answer
    x = 3,639.42

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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.