Home / 3,117.36-4,672.80-1,472.68

Finding the Fourth Proportional to 3,117.36, 4,672.80 and 1,472.68

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Solution

The fourth proportional to 3,117.36, 4,672.80 and 1,472.68 is: 2,207.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.36 : 4,672.80 = 1,472.68 : x
  2. Step 2: Convert to fraction form
    3,117.36/4,672.80 = 1,472.68/x
  3. Step 3: Cross multiply
    3,117.36x = 4,672.80 × 1,472.68
  4. Step 4: Simplify right side
    3,117.36x = 6,881,539.10
  5. Step 5: Solve for x
    x = 6,881,539.10/3,117.36
  6. Step 6: Final answer
    x = 2,207.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.