Home / 2,987.48-4,124.72-1,810.60

Finding the Fourth Proportional to 2,987.48, 4,124.72 and 1,810.60

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Solution

The fourth proportional to 2,987.48, 4,124.72 and 1,810.60 is: 2,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.48 : 4,124.72 = 1,810.60 : x
  2. Step 2: Convert to fraction form
    2,987.48/4,124.72 = 1,810.60/x
  3. Step 3: Cross multiply
    2,987.48x = 4,124.72 × 1,810.60
  4. Step 4: Simplify right side
    2,987.48x = 7,468,218.03
  5. Step 5: Solve for x
    x = 7,468,218.03/2,987.48
  6. Step 6: Final answer
    x = 2,499.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.