Home / 3,123.59-4,310.48-1,707.29

Finding the Fourth Proportional to 3,123.59, 4,310.48 and 1,707.29

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Solution

The fourth proportional to 3,123.59, 4,310.48 and 1,707.29 is: 2,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.59 : 4,310.48 = 1,707.29 : x
  2. Step 2: Convert to fraction form
    3,123.59/4,310.48 = 1,707.29/x
  3. Step 3: Cross multiply
    3,123.59x = 4,310.48 × 1,707.29
  4. Step 4: Simplify right side
    3,123.59x = 7,359,239.40
  5. Step 5: Solve for x
    x = 7,359,239.40/3,123.59
  6. Step 6: Final answer
    x = 2,356.02

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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.