Home / 3,146.10-4,341.56-1,729.72

Finding the Fourth Proportional to 3,146.10, 4,341.56 and 1,729.72

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Solution

The fourth proportional to 3,146.10, 4,341.56 and 1,729.72 is: 2,386.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.10 : 4,341.56 = 1,729.72 : x
  2. Step 2: Convert to fraction form
    3,146.10/4,341.56 = 1,729.72/x
  3. Step 3: Cross multiply
    3,146.10x = 4,341.56 × 1,729.72
  4. Step 4: Simplify right side
    3,146.10x = 7,509,683.16
  5. Step 5: Solve for x
    x = 7,509,683.16/3,146.10
  6. Step 6: Final answer
    x = 2,386.98

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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.