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Finding the Fourth Proportional to 4,890.16, 7,316.61 and 4,300.48

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Solution

The fourth proportional to 4,890.16, 7,316.61 and 4,300.48 is: 6,434.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.16 : 7,316.61 = 4,300.48 : x
  2. Step 2: Convert to fraction form
    4,890.16/7,316.61 = 4,300.48/x
  3. Step 3: Cross multiply
    4,890.16x = 7,316.61 × 4,300.48
  4. Step 4: Simplify right side
    4,890.16x = 31,464,934.97
  5. Step 5: Solve for x
    x = 31,464,934.97/4,890.16
  6. Step 6: Final answer
    x = 6,434.34

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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.