Home / 4,991.60-7,485.24-1,528.04

Finding the Fourth Proportional to 4,991.60, 7,485.24 and 1,528.04

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Solution

The fourth proportional to 4,991.60, 7,485.24 and 1,528.04 is: 2,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.60 : 7,485.24 = 1,528.04 : x
  2. Step 2: Convert to fraction form
    4,991.60/7,485.24 = 1,528.04/x
  3. Step 3: Cross multiply
    4,991.60x = 7,485.24 × 1,528.04
  4. Step 4: Simplify right side
    4,991.60x = 11,437,746.13
  5. Step 5: Solve for x
    x = 11,437,746.13/4,991.60
  6. Step 6: Final answer
    x = 2,291.40

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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.