Home / 5,325.16-7,987.89-1,376.35

Finding the Fourth Proportional to 5,325.16, 7,987.89 and 1,376.35

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Solution

The fourth proportional to 5,325.16, 7,987.89 and 1,376.35 is: 2,064.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.16 : 7,987.89 = 1,376.35 : x
  2. Step 2: Convert to fraction form
    5,325.16/7,987.89 = 1,376.35/x
  3. Step 3: Cross multiply
    5,325.16x = 7,987.89 × 1,376.35
  4. Step 4: Simplify right side
    5,325.16x = 10,994,132.40
  5. Step 5: Solve for x
    x = 10,994,132.40/5,325.16
  6. Step 6: Final answer
    x = 2,064.56

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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.