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Finding the Fourth Proportional to 7,087.88, 9,802.50 and 6,340.52

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Solution

The fourth proportional to 7,087.88, 9,802.50 and 6,340.52 is: 8,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.88 : 9,802.50 = 6,340.52 : x
  2. Step 2: Convert to fraction form
    7,087.88/9,802.50 = 6,340.52/x
  3. Step 3: Cross multiply
    7,087.88x = 9,802.50 × 6,340.52
  4. Step 4: Simplify right side
    7,087.88x = 62,152,947.30
  5. Step 5: Solve for x
    x = 62,152,947.30/7,087.88
  6. Step 6: Final answer
    x = 8,768.91

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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.