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Finding the Fourth Proportional to 3,247.01, 4,870.80 and 907.04

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Solution

The fourth proportional to 3,247.01, 4,870.80 and 907.04 is: 1,360.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.01 : 4,870.80 = 907.04 : x
  2. Step 2: Convert to fraction form
    3,247.01/4,870.80 = 907.04/x
  3. Step 3: Cross multiply
    3,247.01x = 4,870.80 × 907.04
  4. Step 4: Simplify right side
    3,247.01x = 4,417,990.27
  5. Step 5: Solve for x
    x = 4,417,990.27/3,247.01
  6. Step 6: Final answer
    x = 1,360.63

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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.