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Finding the Fourth Proportional to 7,907, 10,910.35 and 4,721.59

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Solution

The fourth proportional to 7,907, 10,910.35 and 4,721.59 is: 6,515.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907 : 10,910.35 = 4,721.59 : x
  2. Step 2: Convert to fraction form
    7,907/10,910.35 = 4,721.59/x
  3. Step 3: Cross multiply
    7,907x = 10,910.35 × 4,721.59
  4. Step 4: Simplify right side
    7,907x = 51,514,199.46
  5. Step 5: Solve for x
    x = 51,514,199.46/7,907
  6. Step 6: Final answer
    x = 6,515.01

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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.