Home / 2,980.86-4,113.60-1,654.57

Finding the Fourth Proportional to 2,980.86, 4,113.60 and 1,654.57

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Solution

The fourth proportional to 2,980.86, 4,113.60 and 1,654.57 is: 2,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.86 : 4,113.60 = 1,654.57 : x
  2. Step 2: Convert to fraction form
    2,980.86/4,113.60 = 1,654.57/x
  3. Step 3: Cross multiply
    2,980.86x = 4,113.60 × 1,654.57
  4. Step 4: Simplify right side
    2,980.86x = 6,806,210.31
  5. Step 5: Solve for x
    x = 6,806,210.31/2,980.86
  6. Step 6: Final answer
    x = 2,283.30

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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.