Home / 5,637.47-7,779.56-3,119.49

Finding the Fourth Proportional to 5,637.47, 7,779.56 and 3,119.49

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Solution

The fourth proportional to 5,637.47, 7,779.56 and 3,119.49 is: 4,304.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.47 : 7,779.56 = 3,119.49 : x
  2. Step 2: Convert to fraction form
    5,637.47/7,779.56 = 3,119.49/x
  3. Step 3: Cross multiply
    5,637.47x = 7,779.56 × 3,119.49
  4. Step 4: Simplify right side
    5,637.47x = 24,268,244.03
  5. Step 5: Solve for x
    x = 24,268,244.03/5,637.47
  6. Step 6: Final answer
    x = 4,304.82

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1.5x scale

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.