Home / 3,117.18-4,303.27-1,938.63

Finding the Fourth Proportional to 3,117.18, 4,303.27 and 1,938.63

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Solution

The fourth proportional to 3,117.18, 4,303.27 and 1,938.63 is: 2,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.18 : 4,303.27 = 1,938.63 : x
  2. Step 2: Convert to fraction form
    3,117.18/4,303.27 = 1,938.63/x
  3. Step 3: Cross multiply
    3,117.18x = 4,303.27 × 1,938.63
  4. Step 4: Simplify right side
    3,117.18x = 8,342,427.87
  5. Step 5: Solve for x
    x = 8,342,427.87/3,117.18
  6. Step 6: Final answer
    x = 2,676.28

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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.