Home / 4,541.54-6,809.85-1,420.19

Finding the Fourth Proportional to 4,541.54, 6,809.85 and 1,420.19

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Solution

The fourth proportional to 4,541.54, 6,809.85 and 1,420.19 is: 2,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,541.54 : 6,809.85 = 1,420.19 : x
  2. Step 2: Convert to fraction form
    4,541.54/6,809.85 = 1,420.19/x
  3. Step 3: Cross multiply
    4,541.54x = 6,809.85 × 1,420.19
  4. Step 4: Simplify right side
    4,541.54x = 9,671,280.87
  5. Step 5: Solve for x
    x = 9,671,280.87/4,541.54
  6. Step 6: Final answer
    x = 2,129.52

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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.