Home / 3,157.47-4,368.18-2,765.63

Finding the Fourth Proportional to 3,157.47, 4,368.18 and 2,765.63

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Solution

The fourth proportional to 3,157.47, 4,368.18 and 2,765.63 is: 3,826.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.47 : 4,368.18 = 2,765.63 : x
  2. Step 2: Convert to fraction form
    3,157.47/4,368.18 = 2,765.63/x
  3. Step 3: Cross multiply
    3,157.47x = 4,368.18 × 2,765.63
  4. Step 4: Simplify right side
    3,157.47x = 12,080,747.81
  5. Step 5: Solve for x
    x = 12,080,747.81/3,157.47
  6. Step 6: Final answer
    x = 3,826.08

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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.