Home / 5,828.40-8,740.80-1,668.08

Finding the Fourth Proportional to 5,828.40, 8,740.80 and 1,668.08

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Solution

The fourth proportional to 5,828.40, 8,740.80 and 1,668.08 is: 2,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,828.40 : 8,740.80 = 1,668.08 : x
  2. Step 2: Convert to fraction form
    5,828.40/8,740.80 = 1,668.08/x
  3. Step 3: Cross multiply
    5,828.40x = 8,740.80 × 1,668.08
  4. Step 4: Simplify right side
    5,828.40x = 14,580,353.66
  5. Step 5: Solve for x
    x = 14,580,353.66/5,828.40
  6. Step 6: Final answer
    x = 2,501.60

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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.