Home / 1,618.76-2,428.44-926.22

Finding the Fourth Proportional to 1,618.76, 2,428.44 and 926.22

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Solution

The fourth proportional to 1,618.76, 2,428.44 and 926.22 is: 1,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.76 : 2,428.44 = 926.22 : x
  2. Step 2: Convert to fraction form
    1,618.76/2,428.44 = 926.22/x
  3. Step 3: Cross multiply
    1,618.76x = 2,428.44 × 926.22
  4. Step 4: Simplify right side
    1,618.76x = 2,249,269.70
  5. Step 5: Solve for x
    x = 2,249,269.70/1,618.76
  6. Step 6: Final answer
    x = 1,389.50

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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.