Home / 7,456.79-10,290.91-4,472.57

Finding the Fourth Proportional to 7,456.79, 10,290.91 and 4,472.57

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Solution

The fourth proportional to 7,456.79, 10,290.91 and 4,472.57 is: 6,172.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.79 : 10,290.91 = 4,472.57 : x
  2. Step 2: Convert to fraction form
    7,456.79/10,290.91 = 4,472.57/x
  3. Step 3: Cross multiply
    7,456.79x = 10,290.91 × 4,472.57
  4. Step 4: Simplify right side
    7,456.79x = 46,026,815.34
  5. Step 5: Solve for x
    x = 46,026,815.34/7,456.79
  6. Step 6: Final answer
    x = 6,172.47

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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.