Home / 2,516.40-3,472.75-1,397.34

Finding the Fourth Proportional to 2,516.40, 3,472.75 and 1,397.34

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Solution

The fourth proportional to 2,516.40, 3,472.75 and 1,397.34 is: 1,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.40 : 3,472.75 = 1,397.34 : x
  2. Step 2: Convert to fraction form
    2,516.40/3,472.75 = 1,397.34/x
  3. Step 3: Cross multiply
    2,516.40x = 3,472.75 × 1,397.34
  4. Step 4: Simplify right side
    2,516.40x = 4,852,620.07
  5. Step 5: Solve for x
    x = 4,852,620.07/2,516.40
  6. Step 6: Final answer
    x = 1,928.39

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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.