Home / 3,141,637.60-4,334,090.88-1,979,378.32

Finding the Fourth Proportional to 3,141,637.60, 4,334,090.88 and 1,979,378.32

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Solution

The fourth proportional to 3,141,637.60, 4,334,090.88 and 1,979,378.32 is: 2,730,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141,637.60 : 4,334,090.88 = 1,979,378.32 : x
  2. Step 2: Convert to fraction form
    3,141,637.60/4,334,090.88 = 1,979,378.32/x
  3. Step 3: Cross multiply
    3,141,637.60x = 4,334,090.88 × 1,979,378.32
  4. Step 4: Simplify right side
    3,141,637.60x = 8,578,805,524,781.72
  5. Step 5: Solve for x
    x = 8,578,805,524,781.72/3,141,637.60
  6. Step 6: Final answer
    x = 2,730,679.54

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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.