Home / 5,618.84-8,428.47-1,458.74

Finding the Fourth Proportional to 5,618.84, 8,428.47 and 1,458.74

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Solution

The fourth proportional to 5,618.84, 8,428.47 and 1,458.74 is: 2,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.84 : 8,428.47 = 1,458.74 : x
  2. Step 2: Convert to fraction form
    5,618.84/8,428.47 = 1,458.74/x
  3. Step 3: Cross multiply
    5,618.84x = 8,428.47 × 1,458.74
  4. Step 4: Simplify right side
    5,618.84x = 12,294,946.33
  5. Step 5: Solve for x
    x = 12,294,946.33/5,618.84
  6. Step 6: Final answer
    x = 2,188.16

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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.